1- About a week ago I have done a 5.11 to 6.5 upgrade.

Now network connection comes done every 1 or 2 days and I need to restart
the server. (console is up and server has no abend.log)

Where can I see a log of network problems? (so that I can track the error)

2- Is it possible to ask netware to keep a copy of previous CONSOLE.LOGs?
(as it removes logs at each server restart)