Event Type: Error Event Source: BCAAA Event Category: (1) Event ID: 1221 Date: 1/10/2011 Time: 03:33:33 AM (UTC+8) User: N/A Computer: KLDEVDC Description: .... AuthGroup 'KLDEV\Internet_Users' does not exist; status=1789:0x6fd:The trust relationship between this workstation and the primary domain failed.
Under the right circumstances, the message above will be reported if the workstation is unable to reach any DC from the target domain. If the offline DC was the only one that is reachable, then we would expect to see this message.
If the target DC is in a different domain than the workstation, then this becomes a little more complicated. The workstation should contact a Global Catalog server to locate a KDC for the target domain. The workstation will then authenticate to that KDC and request a service ticket for a DC in the target domain. If any of these systems are unavailable, then you might see this event log message.
We have also seen this message reported when the workstation's machine account password was invalid. When the workstation establishes an authenticated connection to the DC, it has to log in using its machine account credentials. The password for the machine account is randomly generated and stored locally on the workstation. The workstation changes it periodically.
Imported Document ID: 000009397
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