Hello,
It seems that the OpenVPN service doesn't restart after a reboot for the RUT955 with a mobile connexion.
I set a periodic reboot at 23:00 and the IP address changes after the reboot. I suppose that is is the reason.
The router is connected to Internet thru Mobile. The IP provided by the APN is private because IPv4 public addresses are almost depleted,
I have no choice: DDNS cannot be used, only OpenVPN.
The router is an OpenVPN client and it knows the IP address of the remote machine (OpenVPN server).
It should restart correctly ?