Issue with Windows Server 2012 Remote Desktop Services Collections

Hello Experts,

      I have a client who has a Windows 2012 Server that runs Great Plains for users as remote desktop apps.  This morning a user reported an issue logging in getting a message that they were already logged in.  Normally when this happens I can login to the Server and in Server Manager - Remote Desktop Services - Collections I can see the GP collection.  There I can see the users logged on and I can log off if they have a connection that is stuck.  However, today when I go to that area I get a red box that says.  

"Could Not Refresh the list of collections."
"Check the status of the following services on the RD Connection Broker Server: Remote Desktop Connection Broker, Windows Remote Management and Windows Internal Database."

When I check those services they are all up and running.  

Any ideas on how to get this working again?  Thanks for the help.
sdpadsAsked:
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Cliff GaliherCommented:
I'd start by restarting those services (or the entire RDCB server.) If that doesn't work, start looking for firewall or security software that may be interfering with communications?  In 2012, *everything* administrative happens through the RDCB so it needs to be healthy and communications need to be working for server manager to function properly.
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hecgomrecCommented:
Please make sure your resources are not running low, specially if this is a virtual setup.  

I have seen this issue going away as soon as I increased memory but it may also be a hard disk problem.
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sdpadsAuthor Commented:
Hello and thanks for the help.  I restarted the server and that did resolve the issue.  It needed some updates so I installed those as well.  

Resource wise we are looking good.  Only using 20% of allocated memory and hard drive isn't getting pinged very much at all.  Pretty beefy specs.
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Windows Server 2012

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