Login loop on ASP.NET application

Question

Since October last year, our site, made in ASP.NET Framework 4.5.2, which is authenticated by Windows, has been having problems when logging in these two browsers and we fear that the error also spreads to Firefox, since sometimes it also fails there.

The specific error is that when logging in, it brings up the login screen again.

I log in with my password: 

And then, the login window is shown again. 

We tried to check all of our IIS configs, to no avail.

Advanced configs of the site: 

Basic app pool configs:

 

Advanced app pool configs:

What configs are we missing or what can we be doing wrong?

Thank you very much!

Answer 1

Hello ，

Thank you for posting in Microsoft Community forum.

From the description above, I understand your question is related to ASP.NET. 

Since there are no engineers dedicated to this topic in this forum. To be able to get a quick and effective handling of your issue, I recommend that you repost your question in the Q&A forum, where there will be a dedicated engineer to give you a professional and effective reply.

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Regards,

Zunhui