ThinOS 9.1.5067 – Wyse 3040 – everything is slow until reboot

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  • #107376
    nico_cepo
    Participant
    • Total Post: 9
    • Regular Joe
    • ★★

    Hello,

    We made the great mistake to upgrade our Wyse 3040 from ThinOS 8.6 to 9.1.

    There have been major bugs in every 9.1 release of ThinOS and I have a feeling that this is not going to stop

    We then implemented 9.1.3129 which seemed more stable. We still had some users complaining about slowness, and we did notice that.
    So I upgraded to 9.1.5067 on those machines. That seemed to solve the problem, so after a while I upgraded to 9.1.5067 for our entire fleet.
    We are again having complaints of slowness.
    I have noticed that everything is slow. We run a Citrix session on these machines on a Windows desktop. Programs are slow, the mouse is not responsive, keys typed on the keyboard take a long time to appear on the screen.
    The Citrix server is not saturated.
    When this problem occurs, which happens as soon as the workstations are started up in the morning, we have found a perfect solution: switch the Wyse off and on again.
    On reconnection, the user finds his Citrix session still running (it is still open on the server), and there are no more problems with slowness. And it stays stable all day. This confirms that this is not a problem on our Citrix servers.

    Has anyone experienced this problem?
    If so, have you found a solution? Maybe try shutting down and restarting the machine to see if that solves the problem too?
    We could upgrade to the latest version in the hope that this problem will be solved, but I imagine we will be faced with new bugs, as the posts on this forum mention.
    At this point, I don’t know what to do. We are currently considering a migration to IGEL.
    Thanks

    #107377
    Wulfgari
    Participant
    • Total Post: 28
    • Regular Joe
    • ★★

    Hallo Nico,

    I can understand you, I am also getting more and more frustrated with Thin OS 9.

    I can confirm that since Thin Os 9.13 it runs very unstable and slow on Wyse 3040, I think ThinOS is now so huge that the weak 3040s can’t cope and they are now end of life . With a 5070 or Optiplex 3000 it should run better even if the two devices no longer have much to do with a thin client.

     

    Ragards Wulf

    #107379
    Jim Lathan
    Keymaster
    • Total Post: 314
    • Jacked into The Matrix
    • ★★★★★★

    Are the Citrix sessions UDP or TCP?

    #107380
    nico_cepo
    Participant
    • Total Post: 9
    • Regular Joe
    • ★★

    Hello,

    @Wulf
    I saw your other post and I see that we share the same frustrations…
    Maybe ThinOS 9.1 is indeed a bit too greedy for the Wyse 3040, but in that case :
    – why offer this OS for the Wyse 3040? For example, ThinOS 9 is not available on the Wyse 3020 or 3030, probably because they are too old and not very powerful.
    – Why is it that once you turn the Wyse off and on again, then everything works perfectly well for the rest of the day? This leads me to believe that this is not a performance problem but a ThinOS bug

    @MichiganMedicine
    Citrix sessions are UDP sessions, via a connection to a Netscaler

    Thank you

    #107381
    Jim Lathan
    Keymaster
    • Total Post: 314
    • Jacked into The Matrix
    • ★★★★★★

    @Nico_cepo,  My Citrix admin is telling me they had all sorts of trouble with UDP (the default) and switched to TCP–at least when presenting a Citrix-hosted app to an Azure Virtual Desktop session.  While that’s not the same, per se, I wonder if there would be any benefit in testing TCP vs. UDP to see if it has any positive effect.  Also, he was wondering if you’ve checked your MTU size as that may yield some insight and warrant making some tweaks there.
    https://support.citrix.com/article/CTX231821

    Grasping at straws really.  Hope this helps.  We’re at the front-end of our thin client journey but have a lot of Citrix experience from Windows and Mac clients.

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