Citrix xenapp driver protocol error

 · “Unable to Launch your application, Contact your help desk with thefollowing information: Cannot connect to the Citrix XenApp server. Protocol Driver error” External connections through the NetScaler fail with a "protocol driver error" while internal connections to the same XenApp server are still successful. Error 3 “Please verify your user name and password and try logging on again.  · When attempting to launch an application after changing the static IP address of the XenApp server hosting the application, the following error message appears: “Unable to launch your application. Contact your help desk with the following information: Cannot connect to the Citrix XenApp server. Protocol Driver Error”. Symptoms or Error. When attempting to launch an application server, the following error message is displayed: "Unable to launch your application. Contact your help desk with the following information: Cannot connect to the Citrix XenApp server. Protocol Driver .

“Unable to Launch your application, Contact your help desk with thefollowing information: Cannot connect to the Citrix XenApp server. Protocol Driver error”. Occasionally, a server will be unable to make new EDT/UDP connections and get a "Protocol Driver Error" until the server is restarted. I have attempted to restart almost every service on the systems having the issue and none seem to correct the issue. Since the RDP service is tied to the UDP port, I believe this is where the issue lies. Good morning Dea (@deaz), I have tested with the Support user for your practice and been able to reproduce the issue. I am sending a call to the Cloud team right now to have them reach out.

“Unable to Launch your application, Contact your help desk with thefollowing information: Cannot connect to the Citrix XenApp server. Protocol Driver error”. 13 ឧសភា XenApp - Protocol Driver Error (i know..) So I'm troubleshooting an issue with our XA servers (3) and they're streamed so all the. If you are running the Citrix receiver in a vSpace session and are getting the Virtual Driver error, use the registry keys below to set time values until.