WTOS ICA client vs Windows ICA client

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  • #5446
    FritzsCorner
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    I am trying to troubleshoot a weird issue we are having with our WTOS terminals when connecting to a Xenapp 5.0 Hotfix Rollup 4 environment. We have a telephony app that receives calls via a softphone that we then put on hold and transfer to a landline phone using a GUI frontend running in Citrix. The problem we are having is that when using a WTOS device to connect to citrix we have a 95% failure rate when attempting to transfer a call but when we connect to the same server through Citrix Web Access from a Windows XP desktop with the 10.00.52110 we have a 100% Success rate. Is there a difference between the WTOS 6.4.0_06 ICA client and the Windows 10.00.52110 ICA client that would cause this issue? I have included the wnos.ini that we are using to connect below in case it could be a configuration issue. Some of the values were changed for posting here for obvious reasons. πŸ™‚

    autoload=2
    Rapportserver=xxx.xxx.xxx.xxx
    EnableLocal=yes
    EnableGKey=yes
    Privilege=None HideConnectionManager=No Lockdown=yes HidePPP=yes HidePN=yes ShowDisplaySettings=yes EnableKeyboardMouseSettings=yes EnableTrace=yes
    Device=Audio Volume=25
    DeskColor=”5 5 5″
    DesktopColorDepth=32
    Timeserver=ntp-server.com Timeformat=”12-hour format” Dateformat=mm/dd/yyyy
    TimeZone=’GMT – 06:00′ ManualOverride=yes Daylight=yes Start=030209 End=110109 TimeZoneName=”Central Standard Time” DayLightName=”Central Daylight Time”
    SignOn=No
    MaxVNCD=1
    VncPassword=”*************” Encrypt=yes
    VncPrompt=Yes ActiveVisible=yes
    Service=ThinPrint disable=yes
    SessionConfig=ALL DisableSound=no
    MultiLogon=yes
    CONNECT=ICA
    BrowserIP=citrixserver.local
    Application=”Citrix Desktop”
    Description=”Citrix Desktop”
    AutoConnect=yes
    Reconnect=no
    Encryption=128
    Colors=high
    Fullscreen=yes
    LogonMode=user-specified
    LowBand=no
    Domainname=Domain
    LocalCopy=no

    #16937
    FritzsCorner
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    • Regular Joe
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    Just to add even more confusion, we had a few V50L thin clients running the latest Linux build and these are working perfectly without any failures on the transferred calls. Is there any network specific configurations for the WTOS that I could set to tweak the WNOS.ini to help fix the issue? I have looked through the latest version of ConfGen but nothing I have tried has helped. Any assistance would be appreciated.

    Thank you

    #16941
    ConfGen
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    The two ICA clients can’t be compared. Wyse has access to the source code of the RDP and ICA client. And for WTOS they are always picking the most important and needed features from the source to port them to WTOS then. Therefore you will never ever find a full ICA or RDP client on WTOS.
    This is an isue you should discuss with Wyse directly and maybe give their engineers remote access to your environment. This way they can replicate the issue and maybe fix it for you (although maybe chargeable).

    Cheers
    CG

    #16958
    FritzsCorner
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    Thanks again CG.

    I did get in touch with our Wyse engineer around the same time I posted this question, and so far all of our tests point towards an issue with the TCX components not playing nice with the web app and IE, which would explain why the Linux Terminals are working just fine. We are in the process of building out a Citrix 4.5 Hotfix Rollup 1 server to test with an older pre-TCX WTOS firmware build to see if we still have the same issue. If we are able to validate this is the issue I am hoping our app developers can work with Wyse to get the issue resolved quickly. Once we have a solution, I will post it here in case anyone else encounters a similar issue.

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