I am seeing this strange behavior in sitecore CM. Recently, I am not able to login to sitecore. When I use the correct username and password, sitecore just refreshes and the login page is shown again. Please find the fiddler trace below for the same.
Based on the fiddler logs , it looks like a redirect is causing the issue. I checked the redirect config, but I don’t see any specific entry for sitecore. If I give a wrong username and password, error message is thrown as expected. Can you please guide me on this.