@Solla-topee 

The camera also worked when I turned off my WiFi and my phone was connected to the internet via 5G, and the camera was connected to the router via LAN. But as soon as I move my phone away from the camera, it goes offline.

1. Please describe your network diagram. For example, internet cable -- wireless router )))((( RE )))((( Tapo C520WS. -> direct LAN Cable to Fritzbox now; when i used wifi the same problem, so it seems not to be a connection issue to the internet what i assumed

  2. What's the model number of your router and the RE? Does the RE use the same Wi-Fi name as the router? Do you have internet when connecting to the router/RE's Wi-Fi? Fritzbox but no WIFI so far in use

  3. When you are near the camera, which Wi-Fi have you connected to on your phone? When the camera displays offline in the Tapo app, which Wi-Fi/network are you using on your phone? we only have one wifi in our house. but like said, it works once weather i use WIFI or 5g on the phone, as long im close to the camera. but 10 m away not 

. What's the LED status on the camera? Could you please send me (@Solla-topee) the camera's MAC address via a private message? i will send mac with pn this evening. LED status not sure as the camera is outside beyong the roof, im inside. but now it is offline, the led is "out".  

maybe the setup went wrong? i conected to the wifi of the Camera itself and run the information 

I just set up the cam as news. worked fine. even was able to go outside with my phone and take a picture of the camera. light was green. 1 minute later it was offline. so it seems it has nothing to to with my phone moving away from the camera, which would even not be consistent, but just losing connection after a short period of time. like i said my c500 is running so well. c520ws and 530ws not, even the 520ws i tested with lan...