I've been having a problem with my Nethserver that I think started when I experienced an extended power loss that caused a forced shutdown.
Basically I'll be using thunderbird and I'll start to get "refused to connect" messages, then I wont be able to access the NethServer management interface. I can still get to server/nextcloud so I know it's still serving pages. I'll have to wait awhile before I get to the management page again so I can start restarting mail services but it doesn't seem to help. I have to reboot the server.
Any suggestions on what to look for? I'm on a VM so should I just spin up a fresh install and use my automatic backups to hopefully restore everything.