Monday, February 20, 2012

Wyse ThinOS 7.1 Xenapp USB not mapping

Hi there

Wyse have recently released the 7.1 version of their ThinOS firmware.  When testing this in our environment it broke USB mapping from our Wyse terminals for Citrix XenApp 6.0.

Normally USB drives are mapped under the Z drive. 

We found that since 7.1 Wyse are now classing the USB drive as a removable drive, Makes sense right?

Previously they classed this as a Floppy Drive, our Citrix Policies allowed Floppy drives for a select few users and we disabled removable drives.  As soon as we allow removable drives all starting working fine.

Thanks
Sam

Thursday, February 16, 2012

Windows 2008 R2 shared files do not automatically show

We found a really annoying issue when implementing our new XenApp 6 desktop.  Users were saving files onto the desktop, but they would not appear until they pressed F5. 

The users desktop is redirected to their Home Drive share.  After more investigations we found that this problem occurred for any shared drive, even if it was to \\computername\c$ of the same computer you were on.

After searching the Internet we found no way to resolve this issue.  There is mention of changing a registry key to "DontRefresh" which had limited success with others but didn't work for us.

We found this problem did not exist on another server in our environment and then we started looking into the differences.

Eventually we found it

Remove the following registry keys

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRemoteRecursiveEvents
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRemoteChangeNotify

Restart explorer and try again!

These registry settings were being applied as part of a performance upgrade script.  I guess from a networking perspective it does create less network traffic but does make explorer unusable I believe.

Hopefully this fixes the problem for you!!!

Thanks
Sam