While logging onto Desktop Director with a Citrix Administrator account the following error occurs:
“Desktop Director encountered an internal error. Please contact your IT Admin for assistance.”

The following Application events might be logged on the server:
“Event 1309, ASP.NET 2.0.50727.0: Event code: 3001 Event message: The request has been aborted.”

“Event 7, Citrix Desktop Director Service: Logon attempt failed.”
 

Allow connections on port 2513 in the Windows Firewall rules.
And/or
Remove/ Reduce the Network Security/Terminal Services encryption policy as shown in the screenshots of the Cause section.

Problem Cause

Windows Firewall restrictions to port 2513 on the Zone Data Collector or XML Broker server configured on Desktop Director.

And/or
Elevated Network/Terminal Services encryption policies for High/FIPS encryption are restricting communication from Desktop Director.