We currently have an issue were a few users randomly gets disconnected from outlook. The event log shows the following :
Event ID= 1021
DOMAIN/Username was unable to connect as
/o=ORGANIZATION/ou=DOMAIN/cn=Recipients/cn=Username. Error 0x4de.
The outlook client report the error 0x8004011D exchange server is not
after a while outlook connects again. Restarting the PC does not resolve the issue. At the same time the disconnect occurs you are able to log onto OWA on the same PC to the same user's mailbox.
What i have seen is that the users affected all have numerous calendars open, they are mostly PA's.