We recently starting using an RDP server (4069 gb mem, quad processors)
Issue: User's session locked up.
Could not access task bar to open Task Manager to stop processes.
She had two Excel documents and Outlook opened when the session froze.
It did not affect other users just her.
I logged in as RDP Admin and stopped processes so she could log in and reopen Excel documents but her task bar was still unuseable.
Her session became unlocked AFTER a time (5 or 10 minutes) but I don't know why.