If you are having one of the following problems:
A) When you access report server or report manager, you get a login prompt multiple times and eventually you get a blank screen.
B) When you try to publish reports/models from Business Intelligence Development Studio (BIDS), you get access denied errors.
Here is a write up and solution
For my solution, I removed the RSWindowsNegotiate setting from the rsreportservice.config and everything was smooth sailing afterward. It took me ages to find this solution for some reason so I’m posting it here too.