Basic Authentication & Integrated Windows Authentication.

I have a 2000 box with a website using Basic Authentication & Integrated Windows Authentication it works fine and logs most users on but it doesn’t log certain users using 98 machines? It try’s to authenticate them and then bombs them on the third attempt.

It’s giving a
HTTP 401.1 - Unauthorized: Logon Failed
Internet Information Services.

The thing is it works on some 98 machines fine using the same user name and password and doesn’t on others?
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What services are installed on the Win9x workstations that don't work versus the ones that do, specifically services and clients under Network Neighborhood.  
Turn off "intergrate authentication" for a sec and see if all users can login using just "basic".

If they can, check that all your computers are setup to use the same verion of NTLM ( the default is NTLM version 1).

If they can't check what your "default domain for authentication" is  and that your users are using the correct login information.

Good Luck :-)

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One other thing.....are you using SSL?

IF you are check that your client's browsers and the IIS server are using the same "bit level" of encryption.
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Only for be sure, Can you try on 98s to type the user using the format "domain\user". Its a fact that they are using Basic Auth.
Also, verify if 98s Browser settings use a proxy and no exceptions defined.
Check if the machines in question are on a different domain.
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mk_b.. you never replied to any of our inquiries, did on eof our questions point you to the answer?  If so it would be helpful to others for you to post your solution.  Thx, MSGeek.
mk_b.. thanks so much for your response.
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