I am having a problem with students accessing my course using the free account. I have set up open enrollment, allowing students to self enroll. The first time they access without any problem, and without setting up an account. The second time they attempt to access, they are asked to log in with a user name and password (which they never created) and if they try to start a new account, it says that email already has an account.
I also ran into a similar problem as a student while taking an online course through a university. I could access the course through the original link, but if I tried other ways to access it always asked for a user name and password, which I never created.