Try these steps:

1. This device only supports 2.4G WiFi. If your router uses a mixed 5G/2.4G band, remove "5G" from the WiFi name

2. If you're unsure, check if the camera can find any WiFi networks. If not, make sure your router's WiFi is turned on

If the issue persists:

Please contact support with your device SN, when it happened, and a recording or screenshot.

If you have any other questions, please don't hesitate to contact eufy Support Engineers for further assistance.