My student is getting an invalid password message, but when he clicks the link to reset the password, he does not get the email. There is nothing in his junk mail folder.
There is an alternative way to access AI2 without a Google login.
Use code.appinventor.mit.edu with a re-visit code.
Don't lose it, or you will lose access to your projects.
Don't share the revisit code with others, or they may delete your work.