Hi, I have two raspberry . One with opvn server installed on outside network with dinamic IP reachable with ddns and one as client inside my network.
I have my lan with a sxt LTE routerboard with 4g connection to outside ( first lan 192.168.90.0/24) connected to mikrotik router on poe/ wan port as 192.168.90.100 and with a home subnet under DHCP 192.168.1.0/24).
The client raspberry is 192.168.1.65. The problem is that when I start or restart raspberry client it connects correctly to openvpn server but after a while (some minutes as hours) connection drop and is not restabilished.
If I connect with a hwawei modem on primary wan ( removing sxt) I have not problem, no drop and automatically openvpn reconnection.
So I ask for an help on sxt LTE nat or firewall rule .
Best regards