REDMAD

In IIS 6, when you configure the applications to work with integrated windows authentication, sometimes you get the following error:
HTTP Error 401.1 Unauthorized Access is denied due to invalid credentials
In order to solve this issue, proceed with the following:
- run cmd
- go to: C:\Inetpub\Adminscripts
- Check if NtAuthenticationProviders metabase property is set to NTLM
- Type: “cscript adsutil.vbs get w3svc/NTAuthenticationProviders” & enter
- If you get the message: “The parameter “ntauthenticationproviders” is not set at this node.” proceed
- Type: cscript adsutil.vbs set w3svc/NTAuthenticationProviders “NTLM” & enter
- A sample from a machine – click for larger