I'm in the middle of an Win2K3 Server/Exchange 2007 to Win2K8 Server/Exchange 2010 upgrade. Everything was going quite well and I am at the point where I was successfully moving mailboxes from the Exchange 2007 server to the Exchange 2010 server. I only have one domain and I currently on have one active Exchange 2007 server and one Exchange 2010 server.
I have moved about 10 mailboxes ranging from 700 MB to 2000 MB and the users report successful use of their mail after restarting Outlook.
Unfortunately, after about 6 hours since my first successful mailbox move, I get a notice from one of my Win2K8 Domain Controllers as follows:
Active Directory operation failed on ZEEDC9SERVER.ashleymcgraw.com. This error is not retriable. Additional information: Insufficient access rights to perform the operation.
Active directory response: 00002098: SecErr: DSID-03150E8A, problem 4003 (INSUFF_ACCESS_RIGHTS), data 0
The user has insufficient access rights.
Why has this just "suddenly" started?
Any help would be appreciated.