Every now and again I get a call from someone connected to our remote desktop server saying that they have just started Outlook 2010 and it won't load properly i.e. can't connect to the Exchange 2010 server. It just sits there saying "loading profiles" then eventually displays a message saying there is a network problem. All other users on the same remote desktop server that already have Outlook running have no problem and can continue to use it normally but if they close Outlook and try to restart it then they will have the same problem.
Staff running Outlook 2010 on other computers have no problems and can close and restart Outlook without any problem at the same time as the remote desktop server users are having the problem.
Staff on other computers can connect to the Exchange server using OWA. Staff on the remote desktop server cannot connect using OWA.
So it seems like just that one computer, the remote desktop server, is being blocked from having a connection established to the Exchange server.
When the problem occurs I have tried rebooting the DC (no change), rebooting the Exchange server (no change) and finally rebooting the remote desktop server which appears to fix the problem until it eventually reoccurs.
I have also tries restarting the Exchange RPC service but that just disconnected all the unaffected users and didn't solve the problem.
During the same time I can ping the Exchange server from the Remote Desktop Server and have no dropped packets.
Can anyone suggest a solution to this that is less disruptive than kicking all the users off the remote desktop server and rebooting or any way I can diagnose what is going wrong.
thanks in advance Jeff