Monday, January 11, 2010

Citrix "Protocol Driver" error when launching an application

One of our Citrix Xenapp 5 servers wouldn't allow applications to be launched, giving a "protocol driver" error. After following the instructions on Citrix's web site (http://support.citrix.com/article/CTX108698) and rebooting the server, the server started working again.

Here are the steps I took, in short:
  1. Disabled session reliability for the server in the Citrix Delivery Services Console
  2. Deleted the ICA-tcp connection in Terminal Services Configuration on the effected server
  3. Recreated the ICA-tcp connection
  4. Re-enabled session reliability
  5. Rebooted the server
I didn't have to recreate the LHC like the Citrix article says.
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1 comment:

  1. My Server is on Server 2008 R2 and I want to connect from another machine. Still cannot resolve this problem. is there something else I still need to configure? plz replue me thanks

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