I've got something else to add. I tried moving the forum to a different server running IIS 7.5 and used the exact same PHP build and configuration that is in use on the server I want to move to, and it works just fine.
When I request admin.php, a subsequent request grabs the stylesheet via...
Thanks to a suggestion from Tarkhubal, I tried pulling up /install, which works as expected on the old server. On the new server, it just goes into a redirect loop instead of prompting me to log in.
I did some more testing. I moved the forum to a different server running IIS 7.5 (the same as the original server) and everything seems to work without a problem.
Has anybody run into an issue similar to mine using IIS 10? Since we're retiring all of our older servers, I need to find a solution.
I'm attempting to migrate our Xenforo installation to a new server. The URL will stay the same.
Xenforo is running fine on the old server (IIS 7.5 with PHP 5.6). I closed the board, backed up the MySQL database and site content and transferred it all over to the new server. The front end...