We are moving to https://tarheelreader.org from the old http://. If I have done things correctly it should just work but there will, no doubt, be issues with the transition.
I have configured it to be as permissive as I know how for the transition. I plan to gradually tighten it up over the next few weeks .
If it fails, try refreshing the page with Control-F5 or shift and the refresh button. Restarting your browser may help.
My hope is this change will fix some of the problems a few of you have been having with logins.