RE: logging in but then loss of domain connection

From: John Bay (johnbay_at_online.microsoft.com)
Date: 09/14/04


Date: Tue, 14 Sep 2004 17:19:31 GMT

What are some of the error messages you are getting in the logs on the
server and the workstation?

It sounds like the workstation is unable to find the Domain controller.

Is there anything installed on the workstations that would interfere with
network traffic?

You said the problem the problem affects the wireless clients only. What
happens if you connect the laptop to the network using a network cable?

The clients use UDP to authenticate. We have seem issues whereby the UDP
packets will get fragmented and authentication will fail. You can switch
Kerberos to use TCP by making a registry change. TCP will usually handle
the fragmentation better.

The article on switching the machine to use TCP instead of UDP is 244474
How to force Kerberos to use TCP instead of UDP
http://support.microsoft.com/?id=244474

Best Regards,

John Bay, MCSE 2003
Microsoft Support Engineer

This posting is provided "AS IS" with no warranties, and confers no rights.



Relevant Pages

  • Re: logging in but then loss of domain connection
    ... > It sounds like the workstation is unable to find the Domain controller. ... > happens if you connect the laptop to the network using a network cable? ... We have seem issues whereby the UDP ... > Kerberos to use TCP by making a registry change. ...
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  • Re: Multiple closed networks and UDP. Please help me.
    ... Each of the three computers will be in its own closed network. ... my program also needs to act as a TCP server on the regular ... I have worked with TCP many times, but never UDP. ... I believe that the TCP connection will be assigned based on the IP address. ...
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  • Re: Kerberos UDP vs TCP
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