Hi Guys,
I am experiencing a problem with Remote Desktop Services running on Windows Server 2008 R2. The RDS deployment is setup as a server farm with the following servers:
- RD-SH-01 (Session Host)
- RD-SH-02 (Session Host)
- RD-SH-03 (Session Host)
- RD-BROKER (Connection Broker and RD Licensing Server)
- RD-REMOTEACCESS (RD Web Access and RD Gateway)
All servers in the farm are operating as normal however sometimes when a RD Session Host reboots or has no logged in users for a period of time, the User Profile Service starts rejecting login requests and returns the following error message:
The User Profile Service service failed the logon.
User profile cannot be loaded.
Due to the way the Connection Broker works in 2008 R2, a server failing to take logon requests correctly has the ability to take down the entire farm which is what my customer is experiencing in their environment.
The RD Farm is setup to use folder redirection and roaming profiles to ensure the user gets a consistant experience regardless what server in the farm they connect to. All servers in the farm are identical in system configuration, lockdown policies and RDS configuration which is mostly administered through Group Policy.
To resolve a failed session host a simple server reboot of the effected host is required. Sometimes up to 3 or 4 reboots are required before the host starts taking connections normally again. Also rebooting a session host for maintenance during for Windows Updates or other purposes may also introduce the problem.
This morning I had a call from my customer and the issue was occurring to RD-SH-01 - the server needed to be rebooted 4 times before it started processing user logons as normal.
I don't understand how multiple reboots magically resolve the issue, perhaps a system service is starting before another service which it is dependent upon? Has anyone else out there had a similar problem?
Any suggestions or feedback would be greatly appreciated.
Kind Regards,
Clint Boessen MVP - Exchange Server, MCSE, MCITPx6, Dip Network Engineering
Perth, Western Australia
Blog: http://clintboessen.blogspot.com
Employer: http://www.avantgardetechnologies.com.au
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