Firstly, to clarify: is the correct default gateway set on the Nest cam? How are you accessing its settings?
Additionally, could you provide any screenshots of the made configuration or any relevant information that might be useful and help us understand the situation better? Thank you.
The connection to the cam is made through the Nest-app. After scanning the QR code, it makes connection via bluetooth and starts the process tot connect to wifi.
The wifi connection itself works with an iPad if phone. But the Nest-app says C106, number connection possible.
Thank you for sharing the screenshots. Could you please check and confirm the following points:
As it looks like you currently only have IPv6 connectivity, can you confirm whether your operator plan provides an IPv4 address? For testing, please try setting the PDP type to IPv4 only via Network → WAN → mob1s1a1 settings tab.
On your Dixbay AP, please try changing the wireless encryption method to WPA2-PSK instead of mixed WPA2/WPA3, and check if the camera connection improves.
If the PDP type was previously set to IPv4/IPv6 (dual mode), then yes, you would need to leave it as IPv4 only, unless you check with your ISP on why only an IPv6 address is being assigned or try selecting a different manual APN.