I have an ASP.Net MVC5 application, using the Identity \"out of the box\" template, as per ASP.Net Identity 2.0.0. I need to upgrade it to use the newer code that is in the
Resolved... turns out the culprit was my Unity DI configuration.
I drilled deep to find the errors getting recursively thrown on each redirect, and it suggested the AccountController dependencies weren't being instantiated. I had a similiar issue last year Unity Container trying to resolve non registered type, throwing error , and so I looked further into the changed dependencies.
Following the suggested answer at Register IAuthenticationManager with Unity resolved the issue.
Thanks for the suggestions re: SSL / HTTPS / Filters, investigating these led me to the exceptions.