Unknown user name when using ms logon

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Unknown user name when using ms logon

Postby ken » 2009-04-06 21:48

I'm the domain admin of "acad". I can log into the computer and have admin rights, but when I try to access the XP computer from UltraVNC I get the following:

Image

I know my credentials are correct. Registry forceguest is set to 0.

I'm using Bozteck VNCScan to deploy, but that shouldn't be an issue.

What's going on?
Last edited by ken on 2009-05-05 18:53, edited 1 time in total.
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Re: Unknown user name

Postby ken » 2009-04-07 13:50

Yes, I did already, and no it didnt solve my problem.

Image
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Re: Unknown user name

Postby ken » 2009-05-05 18:45

I finally found out what the problem was. We had a Domain Policy that only allows NTLMv2 authentication. It seems VNC talks back to the Domain controllers with NTLMv1.

For anyone else with the problem, see http://support.microsoft.com/kb/823659

Set it to:
Clients use NTLM authentication only and use NTLMv2 session security if the server supports it; domain controllers accept LM, NTLM, and NTLMv2 authentication.[/url]
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