IIS 7 Error “A specified logon session does not exist. It may already have been terminated.” when using https

Question

I am trying to create Client Certificates Authentication for my asp.net Website.

In order to create client certificates, I need to create a Certificate Authority first:<

Answer 1

I was getting a this error when trying to bind localhost pfx cert for my development machine. Before i tried any of this above, tried something simpler first.

1. Closed any localhost dev site i had openned.
2. Stopped my IIS server and closed the manager
3. run the manager as Admin
4. Added all my https bindings, no errors or issues this time.
5. restarted iis

Everything seems to work after that.