XenApp 6.5: Retrieving list of load evaluators through AD group policy fails

Problem:

When configuring Citrix Policies for XenApp 6.5 through AD group policy, trying to retrieve a list of available load evaluators, you receive the following error message:

Could not connect to net.tcp://{xa_server}:2513/Citrix/XenAppCommandsRemoting. The connection attempt lasted for a time span of 00:00:00.0000006. TCP error code 10061: No connection could be made because the machine actively refused it 192.168.5.72:2513.


Solution

Make sure the Citrix XenApp Commands Remoting service is started. It is set to automatic, but for some reason it wasn’t running.
I found this by trying the same task via the Citrix AppCenter, Policies node, but continuing on to the next step “Choose when to apply the settings using filters”, clicking Worker Group (Add) –> Add… –> Browse… giving a far more useful error message:

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