Windows Authentication in IIS7 works in FireFox but not in IE7/8

Discussion in 'ASP .Net' started by APA, Jan 11, 2010.

  1. APA

    APA Guest

    I only recently have not been able to get my application to work in IIS7 using windows authentication mode. NOt sure
    why it changed, probably some service pack that was supposed to fix something. Anyway I'm using Vista Ultimate 64 and
    my workstation is on a domain. I have a (ASP.NET) web application using Windows Authentication mode and it keeps
    returning the 401.1 - Unauthorized error. I've read articles indicating that Kerberos is not working and to use NTLM
    authentication. OK, how do I do that? I saw where there is a utility called SETSPN but can't find one for Vista.
    Anyone know where to get it? I don't know if the one for Win2003 server will work and I don't want to make things worse
    if it isn't compatible with Vista.

    TIA.
    APA, Jan 11, 2010
    #1
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