We have 77 teltonika routers for remote installations. We use ssh via port forwarding to reach our machines behind the teltonika router, also we have a nginx server that presents a webapp, this is also behind port forward.
Recently port forwarding drops data and we cannot reach our machines periodically. What happens is that when we connect to a machine via port forward and run a command that uses displays some data in the terminal, we get a few lines printed then the connection is dropped. Same if we try to access the web-server that is behind port forwarding we do not get to the web app.
I think the issue first occured when we upgraded to firmware 7xx, this was needed to make RMS work ( a colleague told me ). If i open ssh on the router and use that as a reverse proxy (not via port forward) everything works fine. Router web gui also works without a problem, it's only the machines behind port forwarding that has any issues.
Anyone else have this issue?
It's mostly the TRB 140 routers, but I think also RUT 955 with 7.xx.x firmware has issues. A reboot can help, but not always.
