Running on IIS - upgrading from 3.11 to current stable release
I am trying to upgrade and I am getting a 500 error but cannot find anything in IIS logs or PHP logs that show what error is occurring. I have turned on debug in web.config
<system.web>
<compilation debug="True" />
<customErrors mode="Off" />
</system.web>
I have also tried to put in the information to show debug from https://docs.moodle.org/400/en/Internet_Information_Services#Directory_permissions
Neither are showing me the true error, just get the generic 500 error and a blank page.
The one thing that is happening is that whenever I go to the root of the moodle website it redirects me to /admin/index.php so there is something out there doing a redirect. I have tried with upgrade key on and off, same result, tried going directly to /login/index.php and get redirected to /admin/index.php.
Thoughts?
Thanks
Michael