If your S100 Wall Light Cam appears to be offline in the eufy Security app due to losing its WiFi connection, please try the following troubleshooting steps to verify if the issue can be resolved:

1. Please check if there is a power outage. The LED indicator light on your S100 Wall Light Cam will be turned off if the camera does not have power.
2. Please make sure your router has Internet connection. If your router is having Internet connection issues, the LED indicator light on your S100 Wall Light Cam will have a red flashing light.
3. If you have recently either changed the WiFi credentials or got a new router, please update the WiFi connection for your S100 Wall Light Cam by going to the eufy Security app > Wall Light Cam Settings > General > WiFi Connection.
4. Please check if you have recently moved the location of your router, and whether your S100 Wall Light Cam may be out of the 2.4GHz WiFi range.
5. Try manually powering off your S100 Wall Light Cam and then powering it back on to restart the camera.
6. For users in the United States, please verify your WiFi channel is set between 1 to 11. If necessary, please go to the router’s settings to configure your WiFi channels.

Note: For detailed instructions on how to configure your WiFi channels, please visit How to Change the WiFi Channels on Your Router.

If you have any further questions, please contact us for assistance.