Hello,
Yesterday we upgraded Exchange 2013 RTM to CU2. Upgrade process went smoothly and without error.
After the upgrade and reboot, however, users cannot login to Outlook no more (endless login loop), and OWA shows this error:
A mailbox couldn't be found for NT AUTHORITY\SYSTEM.
ECP works fine, however.
I tried recreating virtual folders, checked permissions etc. Nothing seems to work.
Also, there's nothing of importance in event logs, so I'm pretty much stuck.
Yesterday we upgraded Exchange 2013 RTM to CU2. Upgrade process went smoothly and without error.
After the upgrade and reboot, however, users cannot login to Outlook no more (endless login loop), and OWA shows this error:
A mailbox couldn't be found for NT AUTHORITY\SYSTEM.
ECP works fine, however.
I tried recreating virtual folders, checked permissions etc. Nothing seems to work.
Also, there's nothing of importance in event logs, so I'm pretty much stuck.