One of my recent project was to deploy XenApp 6.5 with HRP02 for one of our customers. During the application acceptance phase we discovered that one of their LOB (web based) apps was having issues with one certain part of the application.
The Issue
Initially we did a lot of troubleshooting to determine if the issue was only related to that certain part of the web based application. As it was a fit for purpose application there wasn’t a lot of information on the internet to rely on. One of my coworkers Patrick Braam took the time to dive in to this issues, he figured out that Internet Explorer would freeze or hang when IE was executing a certain JavaScript within the application to store data.
The Testing
After the usual steps to resolve this issue:
- Log into the server as Admin via the published desktop; Issue did occur
- Starting the IE without plugins; Issue did occur
- Uninstalling all browser-related software; Issue did occur
- Log into the server as Admin via RDP; Issue didn’t occur
The last test did put us in the right direction as the issue did occur while using the XenApp published desktop but it didn’t occur whilst connecting via RDP. When we launched a desktop as a regular user the issue didn’t occur either so it had to be something in the way XenApp presented the desktop and thus Internet Explorer with this particular part of this LOB application.
The Solution!
After an extensive search Patrick came up with a post on the Citrix discussion forum describing similar problems: HRP02 causes IE freeze/Hang
The issue is caused by the Citrix Mobile Receiver Virtual Channel Service, disabling the service immediately resolved the issue with this certain part of the application. Based on the comments on the forums it does not only affect web based applications but one of the examples in the topic is the MS Dynamics CRM Outlook Client which isn’t a web based application but apparently uses the same instructions.
So when you disable the ‘Automatic keyboard display’ under ‘Mobile Experience’ in your Citrix User Policy you’re all set and good to go.
Kees Baggerman
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Hello Kees, this issue is resolved in HRP03.
Thanks for adding this Michel, I’ve read the comments on the forums too. In this case the change process would be longer than just solving in the issue by disabling the group policy setting.