I have been accessing this group for over a month.
The group has had the same password for 19 months.
I only access this group from my iMac.
When it wouldn't accept the password, I decided to try it on a PC that I've never gone to Adobe Connect before.
Any suggestions are very appreciated.
Are you sure you had the login/password correct? Did you talk with anyone who is an admin on that account and have them provide a temporary password for you?