Camera loosing connection after around 2 hours. After restart connection is established again for another ~2h. Several WiFi connections were tried. 

Assumptions:

- I was suspecting the local network, but after using my tethering from phone (5G, see point 4) with the same effect of loosing connection, I am not longer in a doubt in my local network.

- ISP dynamic addresses: My ISP does not provide me with static IP (it is per additional pay). I cannot use DynDNS because I am not provided with real dynamic DNS address as well. My suspect is the leasing time of the DNS address since connection is lost in approximately similar timeframes? 

Details

Steps performed:
1. C210 LED status:
offline (WiFi is shutdown) : Red Flashing
offline (App indication)      : Orange Solid
online (after restart)          : Green Solid

RSSI: -43

MAC: BO-19-21-XX-XX-XX
Hardware version: V2
Firmware: 1.4.3 build 241010 rel. 33858n

2. Wi-Fi Signal Strength:
- Perfect (placed next to the router)

- RSSI -43

3. Is your phone using other Wi-Fi networks/mobile data when the Tapo C210 shows offline on the Tapo app? Or does the camera show offline on the Tapo app even if your phone is connected to the same Wi-Fi as the camera?
- Phone (App) same local network, same WiFi
4. Network diagram: 
- ISP's router->TPLink Router (Archer C80 AC1900) with two WiFis (home 2.4/5GHz(default) guest 2.4Ghz)->TPLink EAP610 with two WiFis (similar to the router)
    - All four (4) WiFis were used for C210 (initial setup no issues, connects perfectly. After ~2h App shows Offline (camera Orange light solid). After restart connects normally LED Green again for ~2h)
- Mobile phone tethering
    - while phone is connected to the local WiFi - same issue as described above
    - while phone is connected to 5G network - same issue as described above

5. Reset the C210 to factory:
- All done for several different WiFi networks