User session locked on IS due to a network errror in Citrix environment.

Problem: Consider a scenario where user gets locked while using Imaging applications through Citrix URL and not able to continue with the work.
Reason: When user uses the application through Citrix URL, sometime session becomes expire if the application is left IDLE for a long time and it leaves the user logged into image server. Assume the user is allowed to create only session with the IS.
Solution: System administrator can be contacted to unlock the user on Image Server so that user can continue with the application.