Question : DNS Issues with Active Directory

Recently Our DC (Windows 2003 Enterprise ED. Server) has been registering the following error in the event viewer:

The DNS server has encountered a critical error from the Active Directory. Check that the Active Directory is functioning properly. The extended error debug information (which may be empty) is "000020E3: SvcErr: DSID-031B063D, problem 5002 (UNAVAILABLE), data 0". The event data contains the error.

The error registers everyday around the same time, twice.

Nothing was changed in our network configuration that could have triggered this, and eventhough our knowledge of DNS is not extensive, we checked everything in DNS(nslookup) to see if DNS was malfunctioning, but it seems to be working properly. Also Active Directory doesn't seem to be malfunctioning. There are no signs of ill effect on the overall system either, but the errors are disturbing none the less.

Does anyone have any idea what is going on?

Assistance will be highly appreciated.

JT.

Answer : DNS Issues with Active Directory

I think the Event ID was 4015 - Can you verify this ?

Try the following:

Point each DNS server to the other as preferred, then point it to itself as an alternate DNS server.

Run the following and post the results:
netdiag /fix
and
dcdiag /fix