We recently went from plain old Terminal Services to Citrix PS 4.5. We only publish a desktop not individual apps.
When using RDP it's possible to establish a session on one client then go to another client and log in again. When users are limited to one session at a time, and they reconnect to the same server, the new login takes over the existing live session and the old client pops up a message saying so.
I'd like to do that in a load balanced Citrix/ICA environment. There's no problem connecting to disconnected sessions but when a user tries to connect to a live session they get the error "You already have an instance of this application open and are not allowed to run more than one instance..."
Any ideas? Am I missing something?