Getting Event Log Event ID 7 Source KDC

Posted on 2006-04-02
Last Modified: 2011-08-18
After installing Windows 2003 Server sp1 and all other windows updates, I am now getting an error in the event log, Event ID 7, Source KDC - The security account manager failed a KDC request in a unexpected way.  The error is in the data field.  The account name is xxxxx and lookup type 0x0.

What is this error, and how do I fix it.

The account name is a server on our DMZ.

Question by:jab56
    LVL 15

    Accepted Solution

    Since your machine is in the DMZ and since SP1 the port 1026/tcp is needed for authentication you should probely open the port and the server can authenticate.

    Good luck,

    LVL 1

    Author Comment


    I have to check with my Network Administrator on this port, but I have something to try.


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