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HTTP Error 403 - Forbidden

When I start Debugging on asp.net3.5 . Browser display bellow message

*Server Error in '/attn-web' Application.

HTTP Error 403 - Forbidden.

Version Information: ASP.NET Development Server 9.0.0.0*

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netraThapa Avatar asked Mar 10 '11 07:03

netraThapa


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3 Answers

It might be an issue with NTLM Authentication.

  1. Right-click on your solution in the Solution Explorer.
  2. Select Property Pages.
  3. Select Start Options in the dialog.
  4. In the Server section, uncheck NTLM Authentication
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Rami Sarieddine Avatar answered Oct 10 '22 07:10

Rami Sarieddine


If you have Vista or Windows 7 try running the Visual Studio as administrator (right click the EXE and choose "Run as administrator") as it might be some security/permissions issue.

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Shadow Wizard Hates Omicron Avatar answered Oct 10 '22 09:10

Shadow Wizard Hates Omicron


I was getting following issues, after trying their solutions i got this same error message

WCFTestClient The HTTP request is unauthorized with client authentication scheme 'Anonymous' (my service is a non-WCF service)

The HTTP request is unauthorized with client authentication scheme 'Ntlm'

and finally got the solution from here which is In the Server section, uncheck NTLM Authentication (Project Properties -> Web -> Servers)

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bjan Avatar answered Oct 10 '22 09:10

bjan