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THE DNS server has encountered a critical error from the Active Directory.

Check that the Active Directory is functioning properly.  The extended eror debug information (which may be empty) is "" "".  The event data contains the error.  I believe this is stopping my exchange server from running also.  How can i fix this?
1 Solution
What event ID (code number and source) do you get?
xpconsultAuthor Commented:
Event ID 4015  sc   0000: 51  00  00  00  

then   event id 4004  sc  0000:  2a  23  00  00
the dns server was unable to complete directory service enumeration of zone.  

If the 4004 and 4015 events only appear at start up, you get these events because your zones are stored in AD and you only have one Domain Controller. AD cannot start with DNS, and when DNS starts, because AD has not started, DNS cannot load the zones in AD. The error goes away if you have two or more DCs with DNS installed, or if you use standard primary zones.

If you have a second domain controller, then it can also be caused by DNS service starting up before AD.

You can usually ignore these errors. A true test of the sytem is to use DCdiag /verbose to see if you have any errors. If so, copy and paste the errors here so we can go through them.

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