If the Tapo C501GW shows offline in the Tapo app, work through these checks in order. They come from Tapo’s own connection guide.

What This Problem Means

The camera has lost its connection to your network or to Tapo’s cloud, so live view, alerts and new cloud clips stop.

Common Symptoms

• The camera shows offline in the Tapo app
• Live view will not load
• No new alerts or clips

Safe Checks You Can Try

1. Check the power

Use the original power adapter, or a PoE port or injector that supplies power. Tapo says to use the original supply at its rated voltage and not to use extension cords.

2. Check the status light

Tapo’s status light guide says on most cameras solid red means starting up, solid amber means connected to the network but not the cloud, and solid green means connected to the cloud.

3. Check its connection

The C501GW connects through a 4G LTE SIM card or a network cable; Tapo does not list Wi-Fi on it. If you use the SIM, check there is mobile signal where it is mounted and that the SIM has an active data plan. Tapo’s 4G camera guide says it must be a Nano SIM that supports 4G LTE, and any SIM PIN must be turned off first (put the SIM in a phone to turn it off, but don’t put an IoT or M2M SIM in a phone, because Tapo says the carrier may lock it). If you use a cable, check both ends and try another router port.

4. Restart the camera (and router)

Tapo suggests rebooting the camera, and your router if it’s on a cable, then closing and reopening the Tapo app.

5. On a cable and it only fails away from home?

Tapo suggests setting your router’s DNS to 8.8.8.8, temporarily turning off antivirus, firewall or security software, and testing with a mobile hotspot.

6. Update the app and firmware

Install the latest Tapo app, then update the camera’s firmware from its Device Settings.

When To Contact Support

If none of these checks fix it, contact Tapo support through TP-Link’s UK support site. Have the model and hardware version ready: Tapo says both are on the label on the camera.

Last resort: factory reset. Tapo’s reset guide says to press and hold Reset with a pin for about 5 seconds until the light blinks red. On outdoor cameras you may need to remove the back cover screws to reach it. You will then need to set it up again in the Tapo app. Removing it in the app (long-press its card, or Camera Settings > Remove) also resets it; Tapo says a Tapo Care plan stays on your account.