Citrix Workspace App Freezing


2 days ago  I have seen that T-Mobile Home Internet and Citrix workspace app does not play well together. Latency is on the higher side on the Home internet and Citrix freezes. This has been a real pain while working from home. I hope the upgraded 5G home internet device resolves this issue. There's 'Workspace session' settings but those only apply to Web connections (default timeout = 20m). With 'Session idle timer interval' policies we're able to disconnect active desktop sessions but that has been 1/2 the battle lately. We do have a ADC on-premise and have configured Citrix Cloud to use the ADC over the Gateway Service.

A list containing the majority of Citrix Workspace app for Windows (formerly Receiver for Windows) support articles collated to make this page a one stop place for you to search for and find information regarding any issues you have with the product and its related dependencies.

The page is updated daily with new support articles and information. Articles will change from time and if information here is outdated or incorrect please let me know using the comments. Links may also expire or change so if you find broken links, please again let me know. For each issue, known product versions affected are recorded however that does not mean product versions that aren’t listed are not affected.

There is a search box that you can use if looking for a specific fault. For example if you have an error code or error message, use that to perform a search. You can also use your browsers search feature which will perform a search against the whole page based on the words you enter.


Receiver for Windows / Workspace app for Windows:


wdt_IDBrief Description of IssueBrief Description of FixApplicable Product Versions Affected (if known)Link to supplemental Support Article(s)
1Resources with names ending with the published desktop name do not show up in Receiver.This is by design. Avoid using a suffix of the currently published desktop name.
2When running Receiver with non-elevated permissions, you are unable to launch desktops or applications.Make sure you have full permissions to 'HKCUSOFTWARECitrix'. If the user account does not, delete the Citrix key and then restart Receiver. The key should be recreated with the appropriate permissions.
3Upon launching a published desktop you receive error 'The specified module could not be found'.From a trace 'AxWfIcaLib.dll' was missing. .NET 4.6.2 was reinstalled and the user's profile was recreated.Citrix Receiver for Windows 4.8.
4On first logon SelfService.exe crashes with message 'Self-Service Plug-in exited unexpectedly'. On second logon, it works.The desktop folder is missing from the default user's profile. Once added, Self Service works.
5The authentication window shows periodically even when Receiver is not opened.Create registry strings to suppress Self Service refresh.
6The Shift + F4 hotkey sequency may not function as expected after installing Receiver for Windows 4.7.Receiver for Windows 4.7 adds functionality for IME which is configured by default to use the Shift + F4 hotkey. You must change your custom hotkey to a different combination by editing the client machine registry.Citrix Receiver for Windows 4.7.
7When using a Surface Pro and attempting to span a Remote PC session, the Surface Pro screen looks OK but the second monitor has issues such as the resolution being wrong and black bars appearing along the top and sides of screen.Receiver for Windows is not a DPI aware application so depends on the Windows OS to scale the application as appropriate to the client's DPI settings. Set DPI scaling to 100% on both monitors and on the Surface Pro.
8Receiver might fail to perform the scan function with error message 'Your operation is cancelled'.Upgrade to Receiver for Windows 4.7.Citrix Receiver for Windows 4.5 and 4.6.
9wfica32.exe crashes when launching certain resources.wfica32.exe crashes with a divide by-zero exception when the cursor position is set in the Desktop Viewer window. To overcome this, delete keys under HKCUSoftwareCitrixXenDesktopDesktopViewer.
10When users double-hop, wfica32.exe consumes a high amount of CPU.Create a SlowHPCPolling registry key with a value between 2-500ms. It is required that you test the value in your environment to determine which value works best. It is recommended to start with 16ms but if you notice performance issues then you can increase or decrease the value. By default Receiver for Windows polls certain libraries and drivers every 2ms, which will ultimately consume more CPU on the VDA.

We are in a strange situation where users at some sites are experiencing freezing on their Citrix sessions whilst others at the same location connecting to the same remote server are not. There seems to be no correlation between Workspace App version or Windows version. Strangely these issues only started around two weeks ago when I added a new session host for a a new customer (who is also experiencing this issue). It should be noted that of our 13 customers/sites, the issue is only being experienced by 3 of them (includes the newly added customer).


We have a 200MB Netscaler (ADC v13 VPX), 2 x DC 8GB RAM 4x vCPU 7.15 LTSR CU4, 2 x SF 8GB RAM 4x vCPU 7.15 LTSR CU4 and 2 x SQL 2017 BAG 8GB RAM 4 x vCPU, 20 x Session hosts with 16GB RAM 4 x vCPU VDA 1906.2. All Servers are Windows 2016 and HYPER-V is virtualization platform. All up we have about 95 users (yes its small) spread across 13 sites.

Personally I think this is some kind of local networking issue however I'm interested if other users have had similar experiences and what was done to resolve the issue.

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Why Does Citrix Keep Freezing