OK, for the last couple of days I've been fighting this. I am a unix admin who is now inheriting a Windows network, and I am a little new to this.
Our main DC (FSMO master in all roles) doesn't seem to be working right. I've got a bucketload of symptoms, but I think these are the most relevant:
Event Type: Warning
Event Source: NTDS Inter-site Messaging
Event Category: (19)
Event ID: 1473
Time: 10:14:42 AM
The Intersite Messaging Service failed to read the configuration of the Intersite Transports out of the Directory. The error message is as follows:
The specified server cannot perform the requested operation.
The service has stopped. It will be necessary to correct the problem and restart the service in order for intersite communication to occur. The KCC will be unable to calculate intersite topology without this service.
There may be a problem retrieving data from the LDAP server. Please verify that LDAP queries are succeeding on this machine. You may also wish to try restarting the Intersite Messaging Service manually.
The record data is the status code.
0000: 3a 00 00 00 :...
Manually restarting that service results in the same error message. Also, DNS on that server is down, but I think that's because AD is broken. Also:
Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1000
Time: 10:36:04 AM
User: NT AUTHORITY\SYSTEM
Windows cannot access the file gpt.ini for GPO The file must be present at the location <>. (). Group Policy processing aborted.
I am not sure if that's just another effect, or a clue, but there it is.
Any help is greatly appreciated.