Attempt to determine whether user and machine accounts are in the same forest failed (0x6b5).

[Mats White]

I've been getting the error below on a couple of domain controllers and
can't find any (useful) information on the errors from MS or elsewhere on
the web. Both servers are running W2K SP4 and are up to date there's only
one tree in the forest. Help appreciated.

-Mats

mwhite at ori dot org


Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1000
Date: 11/11/2003
Time: 9:50:17 AM
User: NT AUTHORITY\SYSTEM
Computer: ServerName
Description:
Attempt to determine whether user and machine accounts are in the same
forest failed (0x6b5).

 

[Guest]

I recieve this message when the Netlogon service is stopped or has stopped sporatically. Any errors related to the Netlogon service in the EV? Also, I just found out the hard way that SP4 doen't update top level domains (example: you're internal domain is example instead of example.com) I've seen this error often and it was related to the Netlogon service.