Remote desktop can not verify that the two remote computers belong to the same farm.

Hello,  I have a Windows 2008 r2 Terminal Server Farm.  I have 2 servers and a remote gateway server.  For the past year this has been working properly.  All of a sudden random users are getting th following error.

This computer can't connect to the remote computer.  

The remote computer that your are trying to connect is redirecting you to the remote computer.  Remote desktop can not verify that the two remote computers belong to the same farm.  This can occuf if there is another computer on your network with the same name as the computer you are trying to connect to.  Contact your network administrator for assistance.  

There are definately not 2 pcs on the network with the same name.  Nothing has changed on my terminal servers in the past year with the exeption of installing Microsoft Updates.

Something that I have notticed is that if I log into my first terminal server and goto remote desktop services manager.  The user that is getting the error always has a session that is showing disconnected.  As soon as I click reset on that session, the user can log in with out any issues.  

It almost seems like my first terminal server is not clearing out the disconnected sessions.
CronimetITAsked:
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arnoldConnect With a Mentor Commented:
Do you have session broker setup? A disconnected session is supposed to be resumed I.e. the user lands in the first server and based on he existing session the farm is trying to bounce the connection to the other.
But you identified a fix until you resolve why the session detection does not seamlessly handle the transition, have the user logoff from their sessions.
http://www.techotopia.com/index.php/Deploying_a_Windows_Server_2008_Terminal_Server_Farm_using_TS_Session_Broker
http://technet.microsoft.com/en-us/library/cc772418(v=ws.10).aspx
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