I have skimmed through the previous posts here Remote access works for several minutes then goes offline and Plex Server crashes and looked at the two sets of server logs provided from the 19th and 21st of November
If you don’t mind i would like to give you our next beta release and would like to troubleshoot with that - this is currently in alpha and would be beta soon - I will send you a private message with download for 1.30.1.6483
We need to establish if the server is locking up and if the issue still arises in the latest builds
Unfortunately - diagnostics for lockouts are not very easy to get and we would need a core dump as well as the list of connections at the time and of course the debug server logs
I will send you a private message with instructions for using lldb to get a core dump if the issue remains with the latest build