Situation: After a server refresh from Windows 2008 SP1 to Windows 2008 R2 – we were unable to connect to ANY share on a windows 2000 client.

Other servers like windows 2003 server could connect fine

Our previous SOE desktop running windows 2008 SP2 was also ok.

Server 2008 SP2 and Server 2008 R2 server images out of the box were unable to connect to the 2000 server and browse its shares.

Error Message:  The account is not authorized to login from this station.

Solution: From the connecting windows 2008 server (client) create a new GPO with the following configuration

Computer ConfigurationWindows SettingsSecurity SettingsLocal PoliciesSecurity OptionsMicrosoft network client: Digitally sign communications (if server agrees) = DISABLED

System Must REBOOT

Other Issues:

Citrix PVS Servers

This solution simply wouldnt work on a standard Citrix PVS server image

The registry key had to be ‘tattooed’ into the image before connections would work at all (its on this environment we first noticed the issue and its due to this problem that we were unable to pinpoint the problem immediately)

References:

Microsoft article http://support.microsoft.com/kb/887429