I performed a fresh installed in a new server 2008 R2 with Exchange 2010 Std.
Everything worked well for a couple weeks then I get this issue:
The Following Error occurred while attempting to connect to the specified Exchange server "xxx.local:"
The attempt to connect to htt://srv.local/Powershell using "Kerberos" authentication failed: Connecting to remote server failed with the following ,message" Logon Failure: unknown user name or password. For more info , see the About remote Troubleshooting Help topic.
(X) Initialization Failed
The following error occurred while attempting to connect to the specified Exchange server 'xxx.ourdomain.com':
. For more information, see the about_Remote_Troubleshooting Help topic.