Exchange error 4001 explained
I’ve been slaving away over a hot Exchange 2007 server on Windows 2008 for a week now. Great product, except for the Outlook Anywhere component, which does not install itself properly. The issues are well documented by everyone except for Microsoft, it seems like. In any event, over the course of my work, I started seeing event ID 4001 in the logs a lot, with a message that said, “A transient failure has occured. The problem may resolve itself in a while. The service will retry in 56 seconds.”
Another symptom I saw was that OWA (Outlook Web Access) would state that there was a transient failure as well when people tried to access it. The diagnostic information mumbled some stuff about not being able to open a mailbox. This is caused by an inability for the OWA server to communicate properly with the CAS, usually itself. In this case, while following some troubleshooting documents, I had added lines like:
192.168.1.XYZ NETBIOSNAME
192.168.1.XYZ FQDN
to my hosts file. Taking those out and running “ipconfig /flushdns” corrected the issue. I did not see any information on the Web about this, so I figured I should post some.
J.Ja