Citrix Ica For Windows 10

Note:

• This is a live article and is updated as and when new information is available.
• This article also outlines issues seen with Windows 10 20H2. Unless explicitly specified, issues seen with Windows 10 v2004 are seen with Windows 10 20H2 also.

Known Issues

Issue 1

Issue Description
Citrix User Profile Manager (UPM) may stop working after Windows 10 with VDA installed is upgraded to v2004 OR it may break the native Windows applications like notepad, calculator etc when UPM is configured on fresh install of v2004.

[TPV-2706]

Issue 2

Issue Description
Printers part of Citrix Universal Print Server (UPS) are not mapped within ICA session of Windows 10 v2004 VDA.
Problem Cause
Changes in Windows 10 v2004 Operating System is causing the printer mapping failure.

Solution
This issue is resolved with the Microsoft Defender Advanced Threat Protection signature updates released around June 2020.

Issue 3

Issue Description
On Virtual Machine's (hosted on vSphere) with VM version 14 and boot option EFI, a failure may be seen when you upgrade Windows 10 machine to v2004 with an error “We can’t tell if your PC is ready to continue installing Windows 10. Try restating the setup”

[TPV-2703]

Issue 4

Issue Description
On Windows 10 v2004 end point with Receiver/Workspace App, when a network interruption is caused by disabling the Network Interface from Control Panel, Session Reliability feature fails to work.
[RFWIN-15116]
Problem Cause
Changes in Windows 10 v2004 Operating System is making the Session Reliability to fall back to Auto Client Reconnect when the network is disrupted.

Solution
This issue has been fixed in Citrix Workspace App.

• Users on Current Release of Workspace App are advised to upgrade to version 2002 or its replacement that contains the fix.
• Users on the LTSR version of Workspace App are advised to upgrade to version 1912 or its replacement that contains the fix.

Issue 5

Issue Description
On Windows 10 v2004 end point with Receiver/Workspace App, when a network interruption is caused using Firewall, Session Reliability feature fails to work.
[RFWIN-15263]
Problem Cause
Changes in Windows 10 v2004 Operating System is making the Session Reliability to fall back to Auto Client Reconnect as soon as the the network is disrupted.

Solution
This issue has been fixed with KB4571744. Install this KB OR its replacement on end-points to resolve this issue.

Issue 6

Issue Description
ICA launch of Citrix VDA installed on Windows 10 Virtual Desktop v2004 fails OR ICA session disconnects within 2 minutes with error message “Idle Timer Expired “ or “Logon timer Expired”.
[TPV-3025]
Problem Cause
Changes in Windows 10 v2004 Operating System is causing this issue.

Solution
For Citrix VDA version 2006 and above:
Issue is resolved in KB4586853, Install this KB OR its replacement on your VDAs to resolve this issue.
For Citrix VDA versions before 2006:
ICA launch still fails and Citrix is working on fixing it. Please use the below workaround.
Workaround
The WDDM graphics display driver for Remote Desktop Connection which is enabled by default in Windows 10 v2004 and above needs to be disabled as it is not supported by the Citrix VDA. To disable, set the below policies through the group policies for your OU:

• Browse to Administrative Templates (Computers) -> Windows Components - > Remote Desktop Service -> Remote Desktop Session Host.
• Disable the setting “Use WDDM graphics display driver for Remote Desktop Connection”

Issue Description
A failure during component initialization may be seen when 7.15 LTSR VDA (with any CU) is upgraded to CU6 on Windows 10 v2004. This issue is not seen with a fresh install of CU6 VDA on Windows 10 v2004.
[LCM-7909]

Problem Cause
An error 'Failed to configure component 'ICA for workstation services' because it is not installed' is seen. Changes in Windows 10 v2004 is causing this issue.

Solution
Citrix is working with Microsoft to resolve this issue.

Workaround

• Uninstalling the existing CU and installing CU6 resolves this issue.
• Upgrading 7.15 LTSR VDA to CU6 prior to upgrading VDA OS to Windows 10 v2004 is advised.

Issue 8

Issue Description
Following upgrade to Windows 10 v2004, user personalization layer (UPL) services will no longer be able to start during logon. This prevents user layer disks from attaching or being created when users log into their desktops. Note, this issue does not impact App Layering User Layers, it only affects user personalization layer for Virtual Apps and Desktops
[UNI-78456]
Problem Cause
During upgrade to Windows 10 v2004 Microsoft is removing the UPL service key and service from the Winlogon chain.

Solution
There is no solution. Citrix is working with Microsoft to resolve this issue. A workaround for this issue is to uninstall and reinstall the VDA as this will re-register the UPL login services correctly.

Citrix Ica Client For Windows 10

Issue 9

Issue Description
App Layering fails to import a new OS Layer for Windows 10 v2004 with the error: “A failure occurred while importing the OS: Cannot handle more than two partitions on a disk.”
[UNI-79067]
Problem Cause
Importing Windows 10 v2004 as a new OS Layer fails due to Windows creating a recovery partition during installation which results in their being a total of three partitions for the image. This is greater than the maximum two partitions allowed for OS Import.

Solution
Manually deleting the recovery partition will resolve this issue. For more information, see https://support.citrix.com/article/CTX226407. Citrix is working on an enhancement to add support for importing an image containing a recovery partition as a new OS Layer.

Issue 10

Issue Description
Published images from App Layering running Windows 10 v2004 can take 5 minutes or longer to log into Windows and/or for the Start Menu to appear after login.
[UNI-79147]
Problem Cause
The issue is caused by missing dependencies between the App Layering uniservice, and the Windows Delivery Optimization Service (dosvc) and Storage Service (StorSvc).

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Solution
There is no solution. Citrix is working on a fix to resolve this issue.

Issue 11

Issue Description
Audio redirection may fail after a reconnect of ICA session on Windows 10 Multi-session editions with Citrix VDA.
[CVADHELP-15804]
Problem Cause
Changes made in Windows 10 v2004 is causing this issue.

Solution
There is no solution. Citrix is working on a fix to resolve this issue.

Issue 12

Issue Description
Upgrade to Windows 10 20H2 may fail on machines that are configured to have domain administrator profiles managed by UPM
[UPM-3083]
Problem Cause
Changes made in Windows 10 v2004 is causing this issue.

Solution
There is no solution. Citrix is working with Microsoft to resolve this issue.
Workaround
Ensure the domain administrator profiles are not managed by UPM before upgrading to Windows 10 20H2.

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