Server Offline after a day constantly

I paid for a lifetime pass, and everything has been great until recently when I upgraded to a newer computer. Now, every few hours, it says my server is offline. I have attempted a few of the suggestions to claim my original server or the new one I created, but am not able to. I was forced to create a new server, which connects, then goes offline after a few hours. Once offline, it will not reconnect, not even to the main comp. This continues to happen. Any ideas?

Thanks!

Here are some more troubleshooting ideas - https://support.plex.tv/articles/206721658-using-plex-tv-resources-information-to-troubleshoot-app-connections/

If all fail, the bottom of this page will tell you what logs to post in the forum for additional assistance