Thanks- seems to be ok now from web browsers.
UPDATE - still not working. Can sign in but do not see my local Plex server. Early Access was offered - something still quite broken 
Says content unavailable in any app.
Can or see Plex on my NAS - have rebooted it and logged out of every device.
Is this a PlexPass users issue?
early access to what? ( we have a bunch of things in early betas for those that want too try them)
No it is not related to PP.
It just popped up saying ādo you want early accessā and then changed the look of the app.
I still cannot see my Plex Media Server since the issues. Itās Synology, the package is the latest, it is running and rebooting made no difference.
Any ideas?
Did you remove your server from https://app.plex.tv/desktop#!/settings/online-media-sources ?
If you need to claim it again you need to access it from NASip:32400/web/index.html then claim
You can also try https://github.com/ukdtom/ClaimIt that one the Ninjas made
thanks Bigwheel. I donāt think I removed the server from sources, but if I did it was after the issues. Everything was fine until the login problems last night. If I follwo your URL to sources I see this.
On iOS it sometimes says āmultiple sources are available choose oneā. If my NAS appears and I pick it nothing realluy happens.
I tried ClaimIT but get this error āError 401ā which I have seen in some Plex app screens.
It says the password etc were ok but JobFailed.
Iāve removed the PMS package, rebooted and reinstalled numerous times. Tried from my LG TV and varios iOS apps, Safari, Chrome and a PC on chrome. Each time it wonāt āseeā a server and offers that I should āGet Plex Media Serverā when I click on My Media. I never had to do this before. On iOS it seems to have cached some folders - but each are āOfflineā.
sorry that was the wrong link, I meant here https://app.plex.tv/desktop#!/settings/devices/all. You should be able to use the drop to to view servers if there are any.
you can also try this if the server might be mistakenly signed into the wrong account. https://support.plex.tv/articles/204281528-why-am-i-locked-out-of-server-settings-and-how-do-i-get-in/
thanks Bigwheel - I can now see all the devices. I canāt see anything that looks like the Synology.
I did have a look at the support article 204281528 - I edited the preferences.xml and removed the entries suggested, but not all were in there. PlexOnlineHome=ā1ā was not there, and PlexOnlineToken=āRanDoMHexIDecIALtoKeNheREā was blank PlexOnlineToken=" "
I also tried adding a new user from within the Plex pages - no luck.
It looks like this in the web client
ok when you fo to IPofSyno:32400/web/index.html. where āIPofSynoā is your Synolgyās local IP do you see the same thing?
I made this a separate topic since I think this has turned into a different issue for you.
hi I see this
If I deleted the preferences.xml from ```
/Volume1/Plex/Library/Application Support/Plex Media Server/ completely would that be a bad idea?
it will start your server completely from scratch
thatās normal. it just means you are signing into that local Web app rather than the one hosted at app.plex.tv. You only need to be worried if that is not an IP you recognize
Iām gonna ping @ChuckPa since he is much more knowledgable about Synology than me
many thanks Bigwheel. Iām in UK and so heading to bed now, but anything you find out would be great. Iāll give it a shot tomorrow.
One thing I donāt think I mentioned - when I couldnāt log in last night, I did a password reset but kept the same password. I have changed it since then, and also edited my profile to try a new username. No luck.
Hi Trumpy,
Followed those steps and itās all working again! You are a star!! Thanks so much. 
It reset the PM server but kept the libraries.
BigWheel thanks for your help to!
Hi Trumpy,
Iām replying this message just for other usersā benefit. Iāve spent the past 10 hours digging the issue of 401 Unauthorized and 500 Internal errors with my Plex installation on Synology NAS (both app store distribution and docker one) but with no luck to get it moving.
Iāve also tried your methods, but it keeps telling me the request to claim timed out (I figured out from the log). Then I try to disable my router proxy for āplex.tvā, it works!!!
So if anyone like me accessing plex.tv behind a proxy, please try close it and follow trumpyās methods. Hope it work!
Thanks!
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