[61:1002] backup client reached its inactivity timeout of 600 seconds.
That problem usually causes communication.
Check that the servers ping each other and that the telnet to port 5555 works in both ways.
It also reviews the user who lifts the Inet service on the client.
You could add these variables to the client's omnirc file
you will need to create a file called omnirc (without extencion)instead of omnirc.TMPL and add the parameter that are above.