Hallo Andzej,
"So the camera is connecting to RUT950 wifi and is accessible via mobile connection. Correct?"
Yes that's correct. I can connect via Reolink APP to the camera if I am in RUT WLAN.
"Are you using a public IP address to access the camera remotely?"
No until now it is not possibele to reach the camera via Internet if I am not in the RUT WLAN. Please give me an Instruction how I can reach the camera via internet?
"When RUT950 is configured in wireless station mode (client) and uses harbor Wifi as its WAN coonection, the camera becomes inaccessible".
Correct!!
"If you connect a different device (let's say a phone) to a RUT950 (configured in station mode -> harbor wifi), are you able to access the internet? i.e can other devices on RUT950 LAN access the internet?"
Yes I can connect my iPhone to the RUT WLAN if harbor wifi (SBHMOELLER) is on.
Maybe it is helpfull to describe the complete System: the RUT950 is placed in the boat. Connected is a Raspberry Pi with Home Assistant in a Docker via Ethernet. In Homeassistant I can reach the camera. Both devices and Home Assistant on the boat and my equipment at home are connected via Zerotier Network. The Reolink camera (IP: .....-125) is connected via WLAN to the RUT.
I have made a download of the troubleshoot file and attached it to my original question. You should have a look on 22.12.2022 from 17:05 to 17:20.