Security Cameras Without Wi-Fi: How Each Setup Works

While cameras can continue recording even if they do not have access to WiFi, recording is only half the battle. The more difficult challenge is retrieving the recorded footage — it all depends on which option you chose. To retrieve the footage, you need to connect five different items together. Each of these four components — Wi-Fi, internet service, mains power, and the phone app — is an individual link in this chain, and there will always be one component that malfunctions before any of the others.

So, even when Tapo sells a camera as functioning without Wi-Fi, you may end up with an app that says, “Unable to connect.” According to Tapo’s own documentation, once the camera is set up, it will record to the SD card without a Wi-Fi connection; however, without a Wi-Fi connection you will not be able to access the camera’s live feed, view recorded footage, or receive detection notifications via the Tapo app. So, yes, the camera did what it was intended to do; unfortunately, you just cannot access what it did.

Why “Without Wi-Fi” Can Mean Four Different Problems

Begin with the four dependencies, as nearly every forum post that appears confused represents two people each describing a distinct failure as well as their own particular view of that same failure. The Router provides you with your local area network; The ISP then carries the information over to other networks throughout the world, while both power sources keep the Router & ISP connected. In addition to these three items, the application on your mobile phone will not function correctly unless it has connectivity to the internet, even if it shows clipped video stored locally on your shelf.

Separate them and the situations that sound identical stop being identical:

• No internet service at the property. There may be a router, and it may be working perfectly. It just has nothing to hand your data to.
• No router, or the router is off. Nothing local works, because there’s no local network for the camera to be on. Your internet service is irrelevant here.
• You want to skip the cloud entirely. Privacy or subscription avoidance, not a coverage problem. Local storage is the answer, and it’s an answer you can choose even with perfect broadband.
• You want the camera to survive outages. Everything already works; you want to know what keeps going and for how long when something upstream stops.

The addition of one more vocabulary word will help clarify much of the confusion in the sections that follow. A local network is the private conversation occurring between the devices within your building (e.g. the camera, router, recorder, and your phone). The internet, on the other hand, is the long journey to a server located somewhere else. A camera conversing with a recorder from within the same room will never require a long journey, despite the claims made by the camera’s marketing.

The type of network mode your camera is using is also relevant, which is why it is listed in the camera’s specifications. The term “Wireless” generally refers to the method the camera receives power and/or sends video short distances, but it does not mean that the camera has bypassed the networking process altogether. A wireless camera powered using a rechargeable battery is still connected via Wi-Fi; on the other hand, a wired camera that uses an Ethernet cable has no Wi-Fi capability and typically has the least need for it.

These four situations can all be solved in different ways, and two of them can be solved by purchasing a camera that does not have Wi-Fi capabilities. Below is a side-by-side comparison of the five types of wireless cameras. Please note that every entry in this chart is meant to be viewed as a configuration, rather than a measurement of an individual camera’s capabilities, so view it as a roadmap of dependencies as opposed to a specification chart.

When examining only one row of that table as an individual item, this one single row answers the question that most guides mess up. The last two columns, when considered together, expose the actual tradeoff associated with each setup meeting the ‘no internet’ requirement. The set was set up to allow a setup to be verified from any location on the planet, unless the setup has its own cellular-type link to the outside world.

Setup 1: A Camera That Records to Its Own Memory Card

The setup for a space, such as a room, hallway, rented apartment, or any other space, where no cables are present. The camera itself does all of this work: it detects its location, makes a decision on how to process the video, and then records that video to a removable card, which you insert into the camera. As such, there are no routers in this workflow, but most consumer videography cameras still require an app and a local Wi-Fi network to complete the initial camera setup.

This camera setup provides more features than any other configuration. Additionally, this camera setup is often the only one that can continue to function even if the network router is not operational. Finally, this camera setup may also be the configuration that is most likely to fail quietly, for two reasons inherent to the technology: (1) Most consumers will not anticipate how quickly the memory card will fill, and (2) Not all memory cards are created equal and it is possible that using an incompatible memory card may affect the quality and/or speed of data transfer between your camera and your computer.

Because the entire recording system (including memory cards) is built on the camera itself, it is important to use high-speed, high-capacity, and high-quality cards for optimal performance. Cameras may record to and read from substandard cards; however, if you have a slow, low-capacity, and/or incompatible memory card, you can continue to mount your card and record video to it, but the camera may drop frames as recordings play back, and/or may stop recording altogether once the memory card has filled.

• Class 10 or faster, and formatted properly. Reolink’s microSD card requirements list a minimum of Class 10 or higher, formatted to FAT32, with video speed class V30 recommended for 4K recording.
• Surveillance or high-endurance cards. A camera writing constantly is a much harder job than a phone taking photos. Endurance-rated cards are built to be overwritten indefinitely; bargain cards are built to be written once and read forever, which is the opposite of what you’re asking.
• Check the model’s ceiling, not the shelf’s. Supported capacity varies by model within one brand. The same Reolink tables put older models like the Argus 2 and the Go at 64 GB while current models reach 512 GB, and the document adds a narrower note: for models outside the tested list, “only cards up to 256GB are officially guaranteed.”
• The card has to come out to be used. Retrieval means either the app on the local network or the card in a reader. That’s a physical trip to the camera — the same design that makes this setup private is what makes it slow.

Motion detection and continuous recording utilize different configurations (and therefore, vastly different mathematics for storage). A camera card that retains recorded footage for months when used in motion detection mode could be depleted within days when used in continuous recording mode; additionally, most battery-operated cameras do not have a continuous option at all. The section “Retention” provides the detailed calculations on this difference.

When considering which camera to purchase, first go to the manufacturer’s website and look for the ‘supported microSD card sizes’ information regarding the particular model you wish to purchase. Many different models from the same manufacturer may accept 64GB or 512GB microSD cards (and they do not use the title of the product to differentiate between these sizes).

Setup 2: Cameras on a Router With No Internet Service

There are a number of cases where a router is still working, but service is no longer being supplied to that router. An example of this would be a cabin with a satellite dish that was never installed or a shop that’s currently between providers or an apartment where the service has lapsed but the hardware is still there. These scenarios each ask the same fundamental question: when you have an operational router but a non-operational internet connection, what can still be done?

The answer is likely to both surprise and delight many, because the distinction of local versus internet access makes a difference in what is still possible. Reolink has defined all of this in their offline function matrix, so this distinction is very important; many people merge these two issues together, and knowing the difference can be quite helpful. While you may have Wi-Fi connectivity, if the internet is gone, you will still have local app access, local live view, and local playback (through the router) available to you. If the router and internet connection are both gone, then you will not have any remote access to your Reolink products, including remote live view or remote playback. Also, it is important to remember that push notifications and email alerts will cease regardless of either scenario.

Now look at the last column on the matrix — the one labeled “Local Playback (in LAN)” — it is what separates the two scenarios discussed in the first column of this matrix. If you lose electrical power to your router or you lose network access from your camera to that router, you will no longer have Local Playback. You can be sure that the camera is still recording on its SD card, but you cannot access any of those recordings from an SD card unless there is a network connection to allow you to do so. This single row on the matrix illustrates a significant portion of the confusion regarding this category of security products.

eufy’s offline camera guide says almost the same thing, but from the opposite direction. The ISP is offline (down), but your router is still working; thus, you will still be able to access your cameras and see their video on Wi-Fi. If your router goes down (offline), any cameras that cannot reach the storage device or recorder will not operate.

Additionally, you are likely unaware of two more failures associated with using the Reolink application. One of these is automatic firmware upgrades, which Reolink does not have in the no-internet columns on their website, and the other is the time synchronization function that helps maintain accurate timestamps on all video recordings.

So this setup works, with conditions worth writing down before you buy:

• Someone has to keep the router powered and the camera associated with it.
• Storage has to sit on the camera or on a recorder the camera can reach over the local network.
• A phone that’s also on that network can read everything — which is why the retrieval section matters more here than anywhere else.
• Anyone who plans to check the app from work will be disappointed, permanently.

When your WiFi camera has a direct line of sight to your modem/router but is not connected to the Internet, don’t be alarmed; this configuration is designed this way! We call it a “closed-circuit” system because it operates using radio waves instead of cables. The performance of this type of system is determined by the quality of the local area network (LAN) that supports it.

Setup 3: PoE Cameras and an NVR That Never Touch the Internet

This setup allows you to set up a recording network without an internet service connection at your location if you need multiple cameras that are continuously recording. With just one ethernet cable going to each camera, you get power and video at the same time through the same cable, so there is no need to worry about running another power wire or having any kind of wireless network that could degrade the signal. The network video recorder (NVR) is the storage where all the recorded video is sent and processed. Since the entire network (the cameras and the NVR) is independent, there is no further reliance on the internet for recording video from day to night.

For viewing live and previously recorded video, you can hook your monitor up to the NVR directly via an HDMI or VGA connection; thus you are viewing everything locally and have no connection to the internet in any way.

If you prefer a more streamlined way to do this, you could use the wired PoE camera with a network port connected directly to your laptop. Once the laptop’s IP address is set to the same range as the camera, you will have access to the camera via the manufacturer’s desktop viewing client. The only caveat to this option is a camera with a network port enabled — if the camera is Wi-Fi only, you would need to connect via a hotspot instead.

Understanding the PoE layer is essential, as it’s often overlooked. Power over Ethernet (PoE) is not a standalone product type; it is described in Ethernet’s own standard, i.e., IEEE 802.3. The most recent revision of PoE, known as IEEE 802.3bt-2018, allows the maximum available power to be delivered to a powered device over all four pairs of the structured cabling instead of just two pairs. The IEEE 802.3bt-2018 amendment also enhanced the classification mechanism that is used by devices to determine how much power they require.

However, it’s important to note that the IEEE has now classified the IEEE 802.3bt-2018 amendment as a superseded standard because the content in that amendment was incorporated into the newly established base standard, IEEE 802.3-2022, that governs supplying PoE over certain types of twisted-pair cabling. The maximum power rating for a specific device (such as a camera or PoE switch) will depend on the generation of that device as well as its class, so it is recommended to refer to the individual manufacturer’s data sheet for that device’s current maximum power ratings; simply using a wattage number from a vendor-supplied document does not indicate the actual amount of power that will be supplied by the customer’s equipment.

There is one form of connectivity to a device that many people don’t realize: a device can be connected without being connected to the Internet in some way. Reolink’s article about whether PoE cameras and NVRs are functional without connection to the Internet includes an instance in which a PoE camera is directly connected to an NVR via cabling but does not have connectivity through any type of Internet service. In this instance, you will be able to live view and play back the recorded video on the NVR, as well as create motion detection zones on the NVR and set up scheduling for recorded video. However, there is no capability to add the NVR to a mobile app or computer client, either locally or remotely, regardless of whether you are at home on your couch. This is because adding the NVR to a mobile app or PC client requires that the NVR have network connectivity.

Setup 4: A Hub or Base Station That Brings Its Own Link

This hub changes the way people think about connectivity between their cameras and wi-fi. The hub removes wi-fi as part of the camera path, but this does not eliminate the dependence of the system on wi-fi. When pairing with a base station, cameras use the base station’s own link to communicate with the base station, which is the location where the recording for the camera occurs. Therefore, a paired camera may not use your home network at all.

Because of this, the base station looks like a closed-circuit recording system and the second half of the system behaves like one. However, the second half does not behave like a closed-circuit system, which is where a lot of frustration lies.

A hub can only receive one recording from a camera, therefore, if the hub fails, that is the only recording that camera will make. The way in which a camera depends on its own sd card when the base station loses power is determined by the specific camera and the firmware, not the overall architecture of the system. One owner performed an experiment and provided feedback in eufy’s community forum. They unplugged a HomeBase and neither the eufyCam S4 nor the SoloCam S340 were able to record or keep track of where the cameras were pointing. They summed it up nicely by stating that “They’re basically decorations if the Homebase loses power.”

Another owner shared an experience that was similar to mine during a 4-hour outage. He had a solar camera which has its own storage card. As another member put it, “storage is either/or, not both”. Pairing the camera with the hub simply changes the recording target – when the hub loses power, the camera has no way of knowing this. The two owners mentioned are not indicative of how this situation relates to all owners, but they conducted the same tests prior to using it as their own setup.

There’s another thing that sneaks up on people who planned for the exact same scenario. Recordings could be safely stored on the hub, but if the app used to display recordings from the hub needs to establish cloud communication first, recordings will be temporarily unavailable. An owner who discovered this, posted on the forum: “you won’t be able to view recorded videos on HB3 unless you have internet access.” The recording itself was never compromised – just the viewing.

None of the above indicates that the hub should not be used. It makes it a choice with a specific condition:

• The recording works locally and survives an internet outage — that’s the real win over setup 2.
• The hub needs power, always, and it’s the one component whose failure silently takes every paired camera with it.
• Viewing may still route through the internet even when the footage never leaves the house.
• If you want the camera to keep recording independently, verify that specific camera’s behaviour rather than assuming the brand handles it.

Setup 5: Cellular Cameras and 4G Routers Where There’s No Broadband

When there is no broadband service within close distance from the property, cellular architecture is the only infrastructure providing you with the ability to see what is happening. It restores remote access, as it brings its own link to the outside via the camera or router. This can apply to farm gates, job sites, cabins, and storage lots.

There are two different types of cellular architecture: A SIM camera has its cellular radio integrated and its own cellular connection, typically through either battery or solar power. 4G routers providing local storage use a single cellular connection, providing additional connections to provide connectivity between multiple local devices. The type of architecture used will depend on the number of cameras at that particular fixed location and how far away that location is from the cellular tower for that specific router.

The fees charged for using cellular technology are an ongoing cost, which can also be referred to as a subscription. The question surrounding cellular service is one of coverage, not specifications; therefore, the cost is not necessarily represented by a chart.

The compatibility of hardware is not as broad as indicated; the SIM slot’s indication is limited. TP-Link publishes a list of recommended carriers for its 4G cameras, and the list currently available on its US website includes many carrier names from the European, Asia-Pacific, Middle Eastern and African regions, and South America. However, there are no US carrier names listed for any of TP-Link’s models. Furthermore, the website cautions readers that carriers not listed on the manufacturer’s compatibility list may not have been tested, so you cannot be guaranteed to have full compatibility with those carriers.

Check your carrier against this list and compare that information to your model number’s band table, and know that you should do this before you purchase your camera rather than after. Due to the highly regional nature of this catalogue of TP-Link’s 4G cameras, treat the phrase “works on any carrier” as a marketing claim until proven otherwise by the model’s band documentation.

When it comes to the monthly data allowance you receive from your carrier, you should look at the plan your carrier is currently offering for a connected device, not the number you see in the review; go directly to your carrier’s current plan webpage instead of trusting a budget you see in any guide, including this one. Lastly, keep in mind what is using the data; streaming from a cellular camera uses data from the same monthly allowance you receive for streaming video, so pay attention to how much you stream before you determine whether you are satisfied with alerting alone.

If the real question for you is, which cell cam; which bands, which data tier, that would be a different decision than this one and would be based on the coverage in your area versus how the capture process works.

How You Reach the Footage When There’s No Internet

All information shared until this point has dealt with delivering video content, whereas the next step involves retrieving video content – this is the point where all previous delivery systems begin to look quite different, as their limitations start to have an impact on delivery.

There is now a clear distinction between the various delivery options. There are 6 primary options; they should be regarded as a continuum with option #1 being the easiest and option #6 being the least convenient. There is a good chance that the average user may need to utilize only 1 of these options; however, the amount of disruption caused by an interrupted service will be directly related to how you stack up against them.

1. Open the app while standing on the same network. The fastest option, and the one that works in setups 2, 3, and 4 whenever the local network is alive. The camera and your phone have to be on that network together — TP-Link states it directly: you can use the camera or watch live view without internet, provided both your phone and the camera are connected to the same wireless network.
2. Connect your phone directly to the camera. For a Wi-Fi camera with nobody’s network around, the camera can act as its own access point. Watch the data consequence if you go the other way and join the camera to your phone’s hotspot instead: a hotspot is a mobile-data connection, so traffic crossing it can count against your phone plan. Turn mobile data off before you move gigabytes off a card.
3. Use a phone hotspot as a stand-in router. When the site has no network and the camera needs one, the hotspot you’re already carrying works — that’s the standard fallback for a camera with no router to join.
4. Read the recorder through a monitor. Connect a screen to the NVR or DVR over HDMI or VGA and you’re watching live and recorded video with no network involved at all. This is the most dependable viewing path in the whole list, and it’s how a closed-circuit system was always meant to be operated.
5. Pull the card and use a reader. Always possible on an SD-card camera, and worth treating as a backup rather than a routine. Repeated removal wears the slot, and CCTV Camera World’s offline viewing guide discourages leaning on it for exactly that reason.
6. Point a third-party recorder at the camera. Some cameras support ONVIF, an interoperability standard that lets a conformant camera feed a conformant recorder regardless of brand, giving you a recording path that isn’t the manufacturer’s app or cloud. TP-Link says most of its cameras support the standard’s Profile S, and Reolink’s own guidance lists NVR, NAS, and ONVIF recording among the available paths.

It’s important to consider the type of pairing you will be using along with your list. Your choices for pairing with a card-based setup are Routes 2, 3 and 5. The options available when using router types without internet connections are Route 1 as long as your camera remains on the respective network. A recording/review type of setup will provide you with Routes 4 and 6, as well as being the least complicated of the six types. Cellular setups are unique in that they provide all options as well as remote access to your system; this is not provided with any of the other options in the chart.

There are two distinct questions involved in recording and accessing; however, vendors provide answers only to the first question on the package. It would be advisable to have a predetermined route strategy based on the six listed routes; otherwise, you will find yourself in a precarious position at the most inconvenient time.

What You Need on Setup Day — and After a Reset

The Wi-Fi connection needed for onboarding is required only once to use the camera, and users often find out this step requires internet access before they can do anything else with the camera. Once users understand that onboarding is a one-time requirement that does not require a Wi-Fi connection to record, they are usually surprised by this requirement.

These are the dependencies that exist on installation day and almost nowhere else:

• A network to join. TP-Link states the requirement directly: during initial setup, Tapo cameras need an internet connection, and during configuration they must be connected to a network, wired or wireless. Reolink’s Wi-Fi camera guidance makes the same demand and adds a specific instruction — use an Ethernet cable to connect the camera to the router first, and make sure both the phone and the camera have internet access while you do it.
• An account for most consumer cameras. TP-Link notes that most Tapo cameras need the app and a TP-Link account for setup and daily use. There are exceptions — cameras that support Apple HomeKit can be set up through the Home app instead — but the default consumer experience includes an account.
• A phone, in most cases. Onboarding generally runs through a mobile app on a phone or tablet. It’s an onboarding dependency rather than a permanent one, but it’s a real one.
• Power while you configure. Cameras with rechargeable batteries generally need to be charged and awake during setup.

Next to what happens after you rent the property and the owner takes control of the router, you have moved a Tapo camera to a different unit, or you have just changed your WiFi password and are trying to reconnect a Tapo camera to the new network after it has already been set up with a previous owner. The only way to reconnect is to reset the camera and go through the entire configuration process all over again.

TP-Link specifically makes this connection without any ambiguity whatsoever. They state plainly that you must reset and reconfigure the camera whenever you want to change wireless networks and, if you have changed your WiFi name or password, TP-Link says the only exception is if the new router uses the same 2.4 GHz network name, password, and security settings as your old router. Be sure to write down your app and account credentials and store them in a safe location so that you will be able to see them in two years from now.

The last configuration question is about what two recording methods can be used simultaneously with the Tapo camera(s). This is a lot more obscure than the previous configuration question. Most Tapo cameras can record to a microSD memory card, to a Tapo Care Cloud subscription, or to a Network Video Recorder (NVR), Network Attached Storage (NAS), or ONVIF recorder. However, you can record two of these three methods simultaneously, but not all three methods.

According to TP-Link, there is a limitation associated with the camera’s hardware, which leads to one consequence: If you are using both cloud storage and a dedicated card for either ONVIF recording or cloud storage, ONVIF recording will automatically be disabled, which means that you will need to remove the card to enable recording back, if you want to record onto that card again. Many users who use backup systems may disable a recording option without realising it. Make certain that every time you change your storage option, you check the storage screen afterward.

One additional note regarding your settings: When using an Ethernet camera, the camera may revert to its setup mode if the cable to it becomes disconnected. This can happen when the camera is deployed in an area where nobody is available to monitor the camera’s connection.

What Stops Working in an Outage — and What Keeps Going

All of the information above boils down to one question: what exactly is it that you are losing when something upstream does not work? If you look at the table as containing capabilities on the left-hand side, and types of failures at the top, you should find which column(s) you would fall into. The entries in the table provide a description of the expected behavior of each of the configurations that were reviewed in detail above; they were derived from both Manufacturer Documentation and from Owner Reports listed in previous sections of this article.

The majority of the load is carried by two rows, the primary one being that the ability to record video to a card is a benefit offered by all four columns, this being the primary reason to use a card in addition to a system that has a recorder. The second row explains that the entire alerting blocks fail together, as the push alerts must be downloaded from the camera to a server and sent back to the user’s phone. There is no local version of this trip.

The other way in which people are caught out is by not factoring in timekeeping. With a camera that is connected to the internet, the camera synchronises its clock with that of a time server. Without that connection, the clock on the camera will drift in the one area that makes footage useful.

TP-Link’s support answer on offline timestamps explained how the timestamps on the customer’s camera were affected: when the camera was disconnected from the internet and was recording to a memory card, “the camera’s date and time will be affected by the internal timekeeping device of the memory card, the manner in which files are written to the memory card and other design considerations relating to the memory card itself, all of which are not under the control of the camera”.

When an owner experiences an outage, their camera’s timestamps may shift by a few hours, and the suggested remedy is to record your video feed to an NVR rather than back to your camera. Therefore, if you are ever considering giving anyone access to your recorded footage, be sure to check your camera’s clock after extended periods of being offline.

Not everything that goes wrong is immediately obvious, either. A firmware update will not automatically be applied, which can impact whether or not a firmware update you need is due. Additionally, scheduled time-of-day recordings may occur at incorrect times of day. Finally, cloud-based detection that is supposed to distinguish between packages and people vs. what your camera’s internal processor sees will not function, as it will never be operational on your hardware.

One of the most important things to remember is that just because you cannot connect to your camera via your phone does not mean that your camera is no longer operational. Your camera may still be recording every second completely accurately with respect to your recording, but is only not able to route that information through the available channels for display at this time.

How Long Local Storage Lasts Before It Overwrites

The number of days that a drive or card can hold data can be expressed in a simple equation, but most people will guess this incorrectly by an order of magnitude. The amount of data that the video file will consume per second (bitrate) is based on a number of different variables: resolution, frame rate, compression method (codec), how much motion the camera sees, as well as whether you are recording continuously or triggered recording.

You can calculate this for yourself using the following formula, which is for all recording devices. Published recording duration in hours = [recording device terabytes] 8 (1024 1024 1024) / [bitrate kilobits per second] * 3600.

Reolink has a retention formula that is published with examples, and it’s one example, 4096 kbps (equal to 2 TB), that makes the channel count very real. A single camera would be retained for approximately 48 days, four cameras would retain approximately 12 days, 8 cameras would have approximately 5 days worth of retention and 16 cameras would have approximately 3 days of retention. All would have the same drive and bitrate. The more cameras that you add, the less history will be available.

The same bitrate principle applies to card data but has dramatically smaller data retention capabilities than a video stream. According to Reolink’s card tables, at 4096kbps for continually recording on 128 GB card, this will allow approximately 72.8 hours; on 256 GB approximately 145.6 hours and 512 GB approximately 291.3 hours of continually recording one camera – so less than three days continuously records with full surface area every hour.

These numbers are only the manufacturer’s example as it applies to the specified bitrate/channel count, and in fact, they are predictions of data retention for your camera as opposed to an estimated maximum recording time in your individual situation based on these numbers. Four things move them, and you can change all four:

• Continuous versus event recording. Switching from 24/7 to motion-triggered typically multiplies retention several times over. It also means the camera only keeps what it decided mattered, which is a real trade rather than a free win.
• Bitrate. Higher bitrate means better detail and a proportionally shorter history. Dropping a stream’s bitrate is the single most effective lever on retention.
• Stream count. Recorders store a main high-quality stream and a smaller sub-stream, and both consume capacity. Dual-lens cameras multiply it again: Reolink’s worked example for one dual-lens model sums four streams, taking a 3 TB drive from about 44 days on a single-lens camera to about 24 days.
• Camera count. Every added camera divides the same drive, as the 2 TB example shows.

Next comes the loop, which is one part that confuses most people. When your card or drive reaches capacity, the recordings will start to be removed from the oldest recordings to make space for new ones. This is exactly what TP-Link has described as the loop function. There are no warnings, nor is there anything to stop recording. You only ever have a current “moving window” of history, with its life determined by the above math.

Think about how much history you will need before you make your choice of either a card or drive, not once you have decided on the media type. A 64GB card on a 4K camera will remain for hours, not weeks.

The Failure Points Nobody Plans For: Power, Theft, and Interference

The three kinds of failures that occur outside the network completely determine if the previous sections are worthwhile or not. In each case, it’s not about the intelligence of the camera; it’s about whether the entity storing your recordings is still available when you need it.

Power is the first failure mode because it is the most prevalent and most influential, and it does not fail at expected times. For example: when you unplug the base station from power, cameras that were recording to that base stop receiving video. This was illustrated during the “owner test” when several cameras and a doorbell stopped recording when the base station was unplugged. Battery-powered and solar-powered cameras have their own power supply, so they do not have this type of limitation, while all other cameras are dependent on the electrical grid.

If you place a UPS beneath both the recorder and the router, it converts any sudden loss of power to a gradual decline, with the amount of time you have available for the gradual decline determined by the UPS size and battery capacity. To find out how long a particular UPS can power the devices that you will plug into it, look at the runtime specifications listed by the manufacturer. It is best to speak with either a supplier or a qualified electrician to get the specific information regarding the devices you will be using with a UPS, including both the number of devices you wish to connect and the length of time for which you require power to each device.

The second type of security vulnerability is theft. The primary reason this is categorized as the second type of vulnerability is that the illegal gain (theft) can easily be achieved through physical access to local storage devices. No matter how sophisticated the digital monitoring cameras are, they cannot prevent theft of the card from a person. In addition, recorders or hubs (the recording devices) are much easier to conceal than a memory card from view, which further supports the case for using a central recorder device in any type of system that is currently successfully set up using cards as recording mediums. Even if you determine which recorder will be used in advance and do your due diligence on its security protocols, you should also consider where the video evidence (recorded media) will be located if the central hub or box were to be removed from the premises.

Third, but not least important, is interference. Interference can be divided into two general types of problems. The first type is everyday interference, and this is caused by issues that can be found in most network environments. TP-Link documentation states that Bluetooth devices, USB 3.0 devices, cordless telephones, and microwave ovens all contribute to interference with wireless camera technology. As an example: A camera may have been tested on a bench and may seem to work without problems, but it may have severe limitations when operating across physical structures.

Interference resulting from criminal activities is the second type of interference and is directly related to federal law. According to the FCC, it is illegal to manufacture, sell, import, distribute, ship, or operate any device that intentionally jamming or blocking authorized communications via radiofrequency, including cellular phones, GPS systems, and WiFi networks, without exception for personal, commercial, educational, or vehicular use.

The penalties imposed under Communications Act sections cited by the FCC generally consist of forfeitures, seizure of equipment as well as criminal sanctions (imprisonment). Additionally, the only agencies permitted to use this type of device are certain military or federal law enforcement entities that have been granted primary use through strict compliance with respective guidelines. For example, if you are experiencing signal loss at a particular location, the FCC recommends that you start by eliminating any possibility of a defective component, faulty equipment, impediments (such as buildings), and/or legally operating devices that are operating on the same frequency before contacting them for assistance; therefore, purchase of new equipment is not recommended until all other possibilities have been exhausted.

The pattern which is consistent throughout all three scenarios is that the actual network seldom causes a total system failure, but the physical architecture or infrastructure that supports it almost always does.

How to Test Your Own Setup Before You Rely On It

Using an internet connection and camera, you can determine how your system will behave in an outage within ten minutes. Find a time when the system is not needed; then change just one item at a time and restore it to its original state.

1. Unplug the internet, not the power. Reach behind the router and disconnect the cable coming in from the provider, leaving the router’s power on. This reproduces a service outage on its own — the failure Reolink calls “WiFi connected but no Internet” — rather than the different failure of a dead router.
2. Trigger something in front of the camera. Walk through its field of view and give it ten seconds to decide you were worth recording. The point is to create a new event while the network is degraded, not to review something that was already there.
3. Try to watch it on your phone on the local network. With the phone still on the household network, open the app and try live view, then playback. Finding that playback works here and remote viewing doesn’t is the expected result, not a fault.
4. Take the whole network down. Now switch the router itself off and try again from the same phone. Everything local should fail. If it does, confirm the camera kept recording during that window once the router is back — that’s the split the whole article turns on.
5. Check the clock and the date. Look at the timestamp on the most recent recording and compare it against your phone. A couple of hours of drift after an offline stretch is documented behaviour, and it’s better to find it now.
6. Pull the power on the recorder or hub, if you have one. This is the test worth repeating, because it’s the one that turns a working camera into a decoration. Confirm whether each camera keeps recording, and whether it resumes when the box comes back.
7. Write down what the app demanded. Note any point where a login, a cloud service, or an internet check was needed to see your own footage. Those are your dependencies, in your own handwriting.

This checklist serves as a practical evaluation of your hardware, based on each of the four points of failure discussed earlier (uplink loss, recorder loss, clock drift and file retrieval). You will not receive a certified rating for your hardware with this checklist; it is simply a method to verify and determine the performance of your hardware prior to completion of installation. When completing the checklist, complete it once as a brand new installation and a second time if you have updated firmware or redesigned any applications.

One of the boundaries that is important to note here is that you are checking your equipment; you are not performing electrical work, so please do not attempt to do so. Conduct the checks from both your app, the router’s uplink cable, and the switches you are currently using. If you need to open your devices, work inside the recorder or panel, or get anywhere close to high voltage wiring or battery enclosures, please see a qualified electrician or the manufacturer’s technical support for assistance. Please ask them your questions regarding load and runtime as opposed to reaching inside the device yourself.

The only relevant benefit that you will have from the 10 minutes spent checking your hardware is knowing which of your capabilities remain functional following a failure before it tests your capabilities for you.

Choose the Connection That Matches the Job

Finding a camera that has a recording method that does not require Wi-Fi is relatively easy. However, whether or not a specific camera can be viewed remotely from a location without Wi-Fi really depends on how you built your record path and view path for that specific camera. Therefore, it’s important to confirm the model conforms to your record and view path prior to purchasing it. You can do this by checking the recording behaviour in the support documentation of that model and then checking for conformance to ONVIF in the ONVIF conformant products database under the firmware version you will be using, as firmware versions determine conformance, not just a badge. Once this is confirmed, you will have an idea of how your system will perform the night the power goes out. If you skip this confirmation, you will not know how it performed until your app goes blank.

Frequently Asked Questions

Can I read a camera’s memory card straight on a computer?

Typically, people are surprised by TP-Link’s version of the file layouts. When you format a card using the TP-Link app, the card is divided into multiple numbered folders. Any empty folders cannot be accessed or played from using the application. Instead, if possible, download clips from the application to your local area network.

Can I record on a card and to a recorder at the same time?

Depending on the hardware, TP-Link allows for different options to record from the camera, including: Micro-SD card recording; Cloud Storage Subscription; NVR, NAS, or ONVIF Storage. Only two out of the three options may be allowed to be on at once. When an additional option is added, one of the existing choices will no longer work, so it is advisable to check the storage settings after making any changes.

Do security cameras keep recording if the power goes out?

Wired cameras and their hubs or recorders, however, will stop recording when the mains supply fails, but a UPS will keep them running as long as the power outage/no power is within the UPS’s battery duration and the load of the equipment connected to it. However, if using battery-operated cameras or cameras powered by solar power, they will continue to work independently of an AC power source.

Can I view footage without an internet connection at all?

Yes, TP-Link says that live view works without an internet connection if your camera and phone are connected to the same wireless network. Additionally, the ONVIF Profile S provides support for streaming from devices that comply, but that profile is being phased out with submission of compliance documentation ending March 31, 2027.