Security camera not turning on — power, PoE & reset troubleshooting
Steve H.
Expert ★★★★★ 27,853 satisfied customers
Specialities: Smart home & Wi-Fi, security cameras (CCTV/IP/PoE), NVR/DVR systems, Ring/Blink/Eufy, power & PoE issues, offline cameras
Security camera not turning on — CCTV camera no power, PoE camera not working, wireless camera won’t power up
Technician
Before we start, can you tell me:
• Is it a wired CCTV camera, a PoE IP camera, or a wifi/battery security camera (Ring/Blink/Reolink/Eufy etc.)?
• Is it connected to a DVR/NVR, directly to a router/PoE switch, or just a power adapter?
• Are there any lights at all (status LED, IR red glow at night, link light on the PoE port), or it’s completely dead?
• In the app or NVR, does it show “offline”, “no video”, or the camera is missing from the list?
Technician
• bad Ethernet cable/connector,
• a weak or overloaded PoE port on the NVR/switch,
• or a failed camera board (no power or short).
Let’s do quick tests that don’t need special tools:
1) On the NVR/PoE switch, check if the PoE/link light for that port turns on or flickers when the camera is plugged in.
2) At the camera, look closely at night or cover the lens — do you see any faint red IR LEDs or hear a click when it turns on?
3) If possible, plug this “dead” camera into a known good PoE port with a known good cable (swap with a working camera).
Technician
Next steps for a security camera that won’t power up:
• Inspect the RJ45 connector at the camera end — any corrosion, water ingress, greenish color, or the jack physically loose?
• Gently flex the short pigtail from the camera while it’s plugged into PoE; if the PoE LED flickers, the internal cable may be damaged.
• If the camera supports both PoE and 12V DC, try a known-good 12V adapter (correct polarity) to see if it powers on via DC. That separates a PoE fault from a complete board failure.
Technician
• blown protection components on the camera’s power input, or
• corrosion inside the housing, shorting the board.
Buying a small 12V adapter is cheap and useful for future CCTV camera not powering on checks, but realistically:
• if the camera has lived outdoors for a while and now shows no LEDs, no clicks, no PoE link, it’s usually more cost-effective to replace it.
• you could test with 12V once; if it still doesn’t turn on, don’t sink time into it — the board is likely dead.
Before we decide, I also want to cover the common steps for other readers whose security camera won’t turn on but doesn’t look corroded.
Technician
For a wireless security camera not turning on:
1) Make sure the power adapter is firmly in a working wall outlet (avoid power strips/extension leads for testing).
2) Try a different adapter with the same voltage and equal or higher amperage (for example, 12V 1A → test with 12V 2A).
3) Swap the USB/micro-USB cable if it’s a 5V camera — damaged cables are a very common reason for a security camera not powering up.
4) Leave it charging for 20–30 minutes, then press and hold the reset or setup button for 15–20 seconds until you hear a voice prompt or see an LED.
If it’s battery-powered and there’s no LED at all even when plugged in, we may be looking at a swollen or failed battery or a dead main board.
Technician
Step 1 — Check the working cameras first
• Identify a known good PoE port and cable where another camera works. This is your test reference.
Step 2 — Swap ports and cables
• Move the suspect camera onto that good port and cable.
• If the PoE LED stays off while other cameras light that port up, the issue is the camera itself, not the NVR/switch.
Step 3 — Inspect the physical camera
• Check the housing, pigtail and connectors for water damage, rust, bent pins or chew marks (rodents love camera cables).
• If you see cracked insulation or moisture inside the dome, it explains why the CCTV camera won’t power on anymore.
Step 4 — Test with 12V DC if available
• For dual-power cameras (PoE + 12V), test with a proper 12V adapter.
• If it still doesn’t turn on with 12V, the internal power circuit/PCB has failed and the camera is effectively dead.
Technician
• other cameras power up on the same NVR,
• a good port + cable don’t light up the PoE LED,
• and 12V DC does nothing,
then that security camera not turning on is almost always a failed unit.
Before you swap it, I’d also:
• check your surge protection/UPS — repeated surges kill camera power boards,
• verify the PoE budget on your NVR/switch if you add higher-power PTZ cameras later (so ports don’t randomly drop power),
• label which cable goes where so future “one of my security cameras is not working” cases are easier to trace.
Technician
• Use cameras rated at least IP66/IP67 and suitable temperature range for your climate.
• Always mount the RJ45 joints inside a junction box or under an eave so rain can’t sit in the connector and kill PoE.
• Avoid tight bends and staples on the cable; damaged copper pairs cause intermittent PoE camera not working issues.
• If you’re in a storm-prone area, consider a surge protector or UPS for the NVR and PoE switch.
• In the app/NVR, enable reboot schedules or watchdog features so cameras auto-recover from glitches and don’t stay offline.
That dramatically reduces “security camera offline but has power” and “camera won’t boot after outage” headaches.
Technician
Quick answer: the accepted fix
Accepted fix when a security camera is not turning on: first test the camera on a known good PoE port/cable or power adapter. If other cameras work on that port but this one shows no LEDs, no IR and no PoE light, the camera hardware has likely failed and needs replacement. For plug-in or battery wifi cameras, use a verified good adapter/cable, try a long factory reset, and give it at least 20–30 minutes on charge before deciding the unit is dead.
Why security cameras don’t turn on: power supply, PoE issues & hardware faults
Most cases of a CCTV camera not powering on come down to three things: no power, no PoE, or a failed camera board. A loose or failed power adapter, a tripped breaker, or a bad extension lead can leave a wifi security camera completely dead. For PoE IP cameras, damaged Ethernet runs, water in the RJ45 jack, overloaded PoE switches, or disabled PoE ports will stop the camera from turning on. If a camera still shows no LEDs or IR on a known good port and adapter, the internal power circuit, fuse, or PCB has failed and the camera usually needs to be replaced.
How to check power on wired, PoE and wireless security cameras
To troubleshoot a security camera that won’t power up, follow a simple pattern: test, swap, isolate. For wired CCTV cameras, check the power supply box or 12V adapter, swap to a different channel, and look for IR glow in the dark. For PoE cameras, verify PoE LEDs on the NVR/switch, try a different PoE port, and test with a short patch cable before blaming long outdoor runs. For wifi and battery cameras, move closer to the router, plug directly into a wall outlet, try another USB or 12V adapter, and hold the reset/setup button until you hear a voice prompt or see a blinking LED that confirms the camera is booting.
Security camera not turning on — quick troubleshooting tips
Most “dead” cameras are caused by simple power and PoE issues you can check in a few minutes.
Start with the basics: plug the camera into a known good outlet or PoE port, bypass power strips, and look for any LEDs or IR glow. Swap to a different Ethernet cable or power adapter with the correct voltage. On PoE systems, confirm the switch or NVR has enough PoE budget and the port’s PoE function is enabled. For wifi and battery cameras, leave them on charge for at least 20–30 minutes, then perform a long factory reset from the app instructions. If the camera still shows zero signs of life, it’s safer to replace it than to chase an intermittent power fault.
Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your home, wiring and security system, please consult a verified expert on Whizz-Tech before making decisions.
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FAQ
Why is my security camera not turning on at all?
A security camera that won’t power on usually has no power (bad adapter, outlet, or PoE port), a damaged cable/connector, or a failed camera board. Test the camera on a known good outlet or PoE port, swap the cable, and check for any LEDs or IR glow. If there are no signs of life on a good port and adapter, the camera hardware is most likely dead.
How do I fix a PoE security camera that is not powering up?
First verify the PoE indicator on the NVR or PoE switch. Swap the camera to a known good PoE port and short patch cable. Make sure the switch or NVR has enough PoE budget and that PoE is enabled on that port. If other cameras work on the same port but this one will not, the PoE circuitry or connector on the camera has likely failed.
My wireless/battery camera is offline — is it a power problem?
If a wifi security camera shows offline but still has LEDs or IR at night, it likely has power and the issue is Wi-Fi or software. If it shows no LED at all, treat it as a power problem: test another outlet, adapter and cable, leave it charging, then perform a long reset. If it never shows a charging or status light, the battery or camera body may have failed.
Can I repair a dead security camera myself?
You can safely handle basic troubleshooting — testing outlets, swapping adapters, checking PoE lights and cables. Board-level repairs (replacing fuses, voltage regulators, or corroded components) require tools and experience and often cost more than a new camera. In most home setups, replacing a truly dead camera is the practical option.
Sources
- Reolink — Why Does My Security Camera Not Work? Top Solutions
- ACCL — 12 Common CCTV Problems and How to Fix Them
- Reolink Support — PoE Cameras Cannot Be Powered on by PoE NVR
Filed under: Not Turning On Power Issues
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