HTTP Error 401.2 - Unauthorized You are not authorized to view this page due to invalid authentication headers

Question

i want to allow access to Anonymous.aspx page to all user, i have set Basic Authentication to Enabled, and Connect as to specific user<

Answer 1

Make sure Anonymous access is enabled on IIS -> Authentication.

But also right click on it, then click on Edit, and choose a domain\username and password. (With access to the physical folder of the application).

Answer 2

I had the same issue, and spent quite a bit of time trying to track down the solution. I had Anonymous Authentication set up at two different levels with two different users. Make sure that you're not overwriting your set up at a lower level.

Answer 3

Open Project properties by selecting project then go to

View>Properties Windows

and make sure Anonymous Authentication is Enabled

Answer 4

Old question but anyway !

Same thing happen to me this morning, everything was working fine for weeks before...... yes guess what ... I change my windows PC user account password yesterday night !!!!! (how stupid was I !!!)

So easy fix : IIS -> authentication -> Anonymous authentication -> edit and set the user and new PASSWORD !!!!!