Citrix ICA timeouts

If you are connecting to an App or Desktop and it takes longer than usual, or if you need to give the applicatioin or Desktop more time to launch – you may consider altering the ApplicationLaunchWaitTimeoutMS registry key on the VDA’s hosting your applications or desktops.

In the situation where you find the initial connection timing out and dissapearing from screen, this may be the necessary action to take.
The ApplicationLaunchWaitTimeoutMS key has a timeout value defined. This object can be found in RegEdit under HKLM -> System -> CurrentControlSet -> Control -> Citrix -> wfshell -> TWI. When changing this value, specify the timeout in miliseconds using decimal. If the value does not exist, create one using DWORD (32-bit).

10 seconds is the minimum value, so you can not set a time lower. If no key exists, this defaults to a timeout value of 1 minute (as of August 2015).

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7 Comments

  • David

    April 8, 2020

    Hello. Well, almost 5 years later and I am finding this helpful. Thanks for documenting this regkey. Just an observation. You accidentally dropped the Citrix out of the key path. Should be:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Citrix\wfshell\TWI

    Thanks,
    David

    Reply
    • George Spiers

      May 22, 2020

      Thank you! Corrected.

      Reply
    • George Spiers

      July 11, 2020

      Thank you.

      Reply
  • Musklor

    December 10, 2020

    Hello, if I have some issues with a published desktop (OS Servers), I have to set this key? Or another?

    Reply
  • Musklor

    December 10, 2020

    Hello, I have a frozen “welcome screen” when users reconnect to their published desktop. (OS Servers 2016).
    We have Ivanti, app layering.
    DelayedDesktopSwitchTimeout key?
    ApplicationLaunchWaitTimeoutMS key?

    Reply
    • Robert

      October 20, 2021

      Musklor, This worked for me. Change the HighDPI setting to use native resolution

      Reply
  • obiwan

    December 11, 2023

    Hi George, is this still apply for recent VDA versions like 2308 ?

    Reply

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