Event ID - 8021

Event Id8021
DescriptionLDAP Add on directory <directory name> for entry <object name> was unsuccessful with error:[0x<error code>] <error message>. <connection agreement name>
Event InformationAccording to Microsoft:
This type of error can occur under many conditions. Refer to the error code/error message in the description of the event for an indication of the cause. For example, if the error message says "insufficient rights," the problem could be with permissions. If the accompanying Lightweight Directory Access Protocol (LDAP) message refers to LDAP_OTHER, the directory service may be out of disk space.
Check network connectivity. Verify that the user name, password, and port address are correct, and try again. If the problem persists, contact Microsoft Product Support Services.
Reference LinksExchange (MSExchangeADDXA)

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.