When an user received the following popup message in his screen (note this is a picture from the event log) Application popup: Connection Error: You already have an instance of this application opened and are not allowed to run more than one instance. Please contact your System Administrator. Well it sounds easy you logon as…Read More Citrix | Popup: You already have an instance of this application opened and are not allowed to run more than one instance.
After some Windows updates yesterday on a few Citrix servers. The following KB 2653959 was installed and something strange happen. Users couldn’t login to Citrix and they got the following error. “<RDP application> Error” Cannot Connect to the Citrix Presentation Server Protocol Driver Error Note: The system was running Windows 2003 server with presentation server…Read More Unable to logon to citrix. error message: Cannot Connect to the Citrix Presentation Server – Protocol Driver Error
Today I had to see how to make an image view program default. Because the had the Microsoft Office Picture Manager as default. Which wasn’t correct, it had to be IrfanView. Now I figured out how to do this. You have to enter the server in Install mode. By the command change user /install After…Read More Make IrfanView default on a Windows terminal server / Citrix
Few months back I experienced an issue with Citrix and it’s secure Gateway. I got the message. Internal Error The Web site is experiencing technical difficulties. We apologize for any inconvenience. The internal error may only be temporary. Try reconnecting and, if the problem persists, contact your system administrator. When I looked in the eventviewer…Read More How to solve a Citrix: Internal Error: The Web site is experiencing technical difficulties. We apologize for any inconvenience.