> No - the key means you have set an enrolment key for the course, so you need to remove it.
I think the documentation for this is out of date. I also think the documentation for guest accounts is out of date. I am looking at the 3.3 documentation, but the menu options I am instructed to use seem to be out of date.
For example: "In the course administration block, click Users > Enrolment methods"
I am guessing that is left over from previous versions of Moodle.
I am not sure how to remove this enrolment key. BTW: I do not think I ever set Moodle to use an enrolment key.
Also in the guest access documentation, I am directed to: "Administration > Course administration > Users > Enrolment methods"
Maybe I am missing something, but I don't think that path exists.
> And I think you need to tick the "Auto-login guests"
I will try it, but it makes no sense. That would seem to be setting Moodle to default to "No - guests should not be logged in automatically . . ."
Thanks again for your help.