Re: The HTTP request was forbidden with client authentication scheme 'Anonymous'.

Hi KulerMaster,

Based on the error message, it seems that the issue is caused by authentication mismatch between iis and wcf. You could just enable Anonymous access to this ASP.NET application in IIS.

Here are some relevant articles, you could refer to them:

https://social.msdn.microsoft.com/Forums/vstudio/en-US/831b4b4a-c7f7-4469-8221-b898ec4464f5/the-http-request-was-forbidden-with-client-authentication-scheme-anonymous?forum=wcf

http://msdn.microsoft.com/en-us/library/ms733938(v=vs.110).aspx

https://social.msdn.microsoft.com/Forums/vstudio/en-US/33cc7db2-d3f6-4c61-996d-ca31b8eb52fb/wshttpbinding-iis-integrated-windows-authentication-set-up-not-working?forum=wcf

Hope they can help you.

Best regards