I am running Server 2008 R2 and am hosting terminal services, with RemoteApp web access and TS Gateway access.
Everything works fine from Vista and Windows 7, but every XP machine is unable to run RemoteApp or RDP.
The XP machine can get past the login page at RemoteApp, but trying to run any applications results in the server requesting the password over and over. On the server, the security logs report bad password attempts, but it is absolutely not an issue of the password being mistyped.
I am aware of the CredSSP feature and have made the registry adjustment to turn it on. http://support.microsoft.com/kb/951608
Can anyone suggest something to try next, please? I am totally stumped here. XP clients can connect, but absolutely refuse to authenticate.
Thanks for any advice!