This has been an ongoing problem with ALL versions of PMS for the past two years and has NOT BEEN RESOLVED to date.
Plex does not connect / stay connected to the Server WHERE IT RESIDES!
I’m sure that this has been encountered by anyone who has MORE THAN ONE Server running PMS as I see it happening ON A DAILY BASIS.
I actually have three system where PMS is installed to Serve the media content on each of these servers. I connect to them through the Web interface (using Google Chrome) with the SPECIFIC IP ADDRESS for each of these Servers; however, Plex is very “confused” about which Server to connect to or even to STAY connected to…
I could be in the middle of checking / updating content when Plex decides to “go out the Window” and connect to a DIFFERENT Server*, other than the one WHICH RESIDES ON THE SERVER TO WHICH IT WAS CONNECTED! Or, after sitting inactive and supposedly operational, when attended to again, IS NO LONGER CONNECTED TO THE SERVER WHERE IT RESIDES!
So why does it NOT connect / stay connected to the Server where IT IS INSTALLED?
(In deference to another machine?)
I’m HABITUALLY having to restart PMS in order to get it reconnected to the Server WHERE IT IS ACTUALLY RUNNING / INSTALLED (as specified by IP), or in extreme cases, have at times had to logoff / log back on to the Plex account.
This has become such a BIG PROBLEM that yesterday, Plex TRASHED an installation BECAUSE IT WAS SO CONFUSED, once again, that after a glitch (failure to properly refresh metadata for a given movie) and being restarted, IT CONNECTED TO THE WRONG SYSTEM and began running through a setup procedure - presenting libraries to be displayed, etc.
Due to the fact that is ONCE AGAIN, DID NOT CONNECT TO THE SERVER WHERE IT WAS RESIDENT and “choose” a different server installation, when Plex was run subsequently, it said the the Server to which IT SHOULD HAVE BEEN CONNECTED was “not available” and continually (unsuccessfully) attempted to reconnect to the Server WHERE IT DID NOT RESIDE.
In other words, IT WOULD NO LONGER CONNECT TO THE VERY SERVER WHERE THE INSTALLATION WAS ACTUALLY RUNNING!
(Beyond BAD, it’s grotesque to think the programming is SO dysfunctional as to create such a problem.)
Was FINALLY able to recover operability by connecting to an “unclaimed and insecure server”, the one WHERE IT RESIDES. Connecting to the “uncalimed and insecure server” caused Plex to run through a setup procedure (again), this time when it was done, my previous Server SETTINGS had been altered and had to be reset (apparently returned to default settings).
Yea, this is a bug report - A VERY BIG BUG as those of you with more than one server know.
If anyone has an idea how to circumvent this bad programming, please let me know. As I say, my resolve has been to have to do a restart of the PMS docker in order to get it to connect properly (to the system where it resides).
Lacking that, obviously, the programming has to be fixed in order for it to operate properly.
*the dysfunction described at this point usually occurs while navigating from one library to another at which time Plex ‘stops responding’, doesn’t present the library content, then upon a refresh of the browser page IS CONNECTED TO A DIFFERENT SERVER.
(At which point, I have to do a restart of the PMS docker to get Plex functional again.)

