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The server "X" does not have a valid connection for casting. Check that the server is claimed ...

HélianzaHélianza Posts: 2Members

Hello !

I am trying Plex to view on my chromecast movies and tv-shows. I installed it, I can watch movies on the Plex tab on chrome, and when I want to cast it, I have a message asking me if I want to continue payback on chromecast. I say yes, and... nothing happen.
When I try again, I receive this message :

"The server "X" does not have a valid connection for casting. Check that the server is claimed in server settings."

Where should I check if my server is claimed, and how can I fix this issue ?

Thanks a lot !




  • ferrazrod168ferrazrod168 Posts: 8Members ✭✭
    edited September 2017

    Same problem here. Started after upgrading plexmediaserver from to This is a Debian GNU/Linux 8.9 (jessie) and a Chromecast v1.
    It only happens when casting from Google Chrome on Windows (10, 64-bit). IOS Plex client IOS (iPhone 5S) and Google Chrome on MacOS Sierra work.

    Web client debug logs show a 'Bad Request' when attempting to cast any movie. The log is attached.

  • nmalonenmalone Posts: 5Members

    I get -

    "Playback Error
    The server "X Plex" does not have a valid connection for casting. Check that the server is claimed in server settings"

    Anyone any idea how to fix this so I can cast?

  • civypxcivypx Posts: 4Members ✭✭

    Are you logged into your Plex account?

  • HélianzaHélianza Posts: 2Members

    I don't know for the others, but I was.

  • wilcox.cwilcox.c Posts: 1Members

    Same problem here with OSX Sierra and Chromecast v1, server Version
    I just restarted my chromecast and that fixed it.

  • gabyxzegabyxze Posts: 4Members

    Hi, after update to the last Plex server version I have the same problem with windows 10 and chrome browser. Also from mobile does not connect any more.

  • ferrazrod168ferrazrod168 Posts: 8Members ✭✭

    Problem remains with version How could we get attention from a developer or power user for this problem? I have even provided a log file clearly showing a bad request in Plex Web Player.

  • peeefypeeefy Posts: 1Members

    same problem here.
    windows 10
    latest chrome and vivaldi browsers

  • plex@vz3.netplex@vz3.net Posts: 5Members, Plex Pass Plex Pass

    same issue here. latest plex + chrome on windows

  • ferrazrod168ferrazrod168 Posts: 8Members ✭✭

    I ended up solving it by fiddling with some settings (Show Advanced button):

    Settings/Web/General/Allow Fallback to Insecure Connections: changed from 'On same network as server' to 'Always'
    Settings/Server/Network/Secure connections: changed from 'Preferred' to 'Disabled'
    Settings/Server/Network/List of IP addresses and networks that are allowed without auth: just removed my local LAN and left this field blank
    Settings/Server/Network/Enable HTTP Pipelining: unchecked it

    After changing this and manually restarting Plex Media Server processes, by running 'systemctl restart plexmediaserver', the error went away.

    BUT: after changing every setting back to their defaults, and restarting plexmediaserver, just to reproduce the problem and locate wich specific setting was the culprit, the error had not returned. 8-O

    My guess is that something was changed in Plex Web Client Version 3.20.5 that messed with authentication. Even after logging off and on again with my Plex username the problem kept happening. But only with Chrome on Windows. Unfortunately I did not have the chance to find out specifically which setting "solved" it.

    Things are still not 100%, as they were previously with version 1.7.*, every now and then I'm getting errors related to 'can't play this media' or something on Chromecast. Despite the errors, I have been successfully streaming movies to my Chromecast v1 from Windows.

    I hope someone else could investigate this further.

  • majoowmajoow Posts: 1Members

    same problem, tried the steps from @rofz but didn't help me.
    been at it for 2 hours now -_-'

  • nydubbernydubber Posts: 9Members, Plex Pass Plex Pass

    @rofz tips worked for me. Thanks!

  • dissidentdreamrdissidentdreamr Posts: 1Validating, Plex Pass Plex Pass

    Just chiming in since I've had the same issue. Signing out and back in again seems to have fixed it for me...

  • pronatur@posteo.depronatur@posteo.de Posts: 1Members

    changing the Settings/Server/Network/Secure connections: changed from 'Preferred' to 'Required' fixed the problem.
    i use linux mint with chromium to cast to localhost (chromecast).

  • geminoidgeminoid Posts: 1Members

    Doesn't work for me, rofz!!?? Anyway, thanks.

  • moughrommoughrom Posts: 1Members

    Ended up doing things indicated by rofz. Worked fine with me.

    thanks rofz.

    I think that changing a network settings and saving the configuration then restarted Plex service.
    then reverting back the setting to its initial state and saving again the configuration and restarting the plex service one more time. should do the business.

  • weirdlabsweirdlabs Posts: 3Members

    I guess it's my turn for this error. Has anyone found a solution?
    I've tried rofz fix.
    I've tried logging out and in again.
    I've tried to release the server and claiming it again.
    Nothing works.

    Local play works fine, but Chromecast to my TV is not working.
    OS: Windows 10 Home Version 1703
    Plex: Version

  • weirdlabsweirdlabs Posts: 3Members

    So, I tried to uninstall Plex and then reinstall it. Still not working.
    Then I uninstalled Plex, searched the entire harddrive for any filename containing "plex* and deleted it all. Rebooted and installed an older version of Plex. Still not working.

    Then I installed Plex on an Ubuntu box and tried to stream that server via the Chrome browser on Windows 10... "Playback Error".

    The odd thing is that I can use the Plex App on my Android phone to stream to my ChromeCast, and it works just fine.


  • ferrazrod168ferrazrod168 Posts: 8Members ✭✭
    edited February 8

    Hello weirdlabs,

    which older version did you try?

    Issues started to me after migrating from server version 1.7.* to 1.8.*. I never had the chance to downgrade it back to 1.7.* due to the fact that I do not know if the database would be backwards compatible and I would really prefer to not recreate it by hand (I have around 30-35 libraries).

    Right now, I'm on version The videos are playing but they ALWAYS show the "There was a problem selecting this stream" error before actually starting to play.

    The latest problem, which started last week, is that MOST of my movies/videos (even the newly downloaded ones) are starting playback at around 10-11 minutes ahead, not at the initial zero position. Odd.

  • weirdlabsweirdlabs Posts: 3Members

    Hi freeazrod168

    At the moment I'm running Version
    But I have given up getting it working on Windows... Too unstable an inefficient for use.
    I suspect that the only solution left is to reset Windows to Factory Default and start all over again.

    Fortunately I'll get my hands on a proper fullblood bare-metal server with powerful hardware in a few days which I will refurbish and install Ubuntu Server on.
    I have already tested it with Ubuntu Desktop on an old laptop. Works just fine, (except that the laptop doesn't have the CPU power I need) so I will move everything over to the server, delete Windows PLEX and start over with new libraries on Linux PLEX.

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