Existing users, 
Authentication could not complete because of an error. This could be a problem with the server. Please try again later.
This is what I get with trying to sign in with my .mac name, I thought this was how you did it. No?
name@mac.com is the screen name, right?
AOL Radio
listen to 200+ AOL and 150+ CBS radio stations
Version: 2.0 beta 1
Authentication Failed
Feedback Type: Troubleshooting Report
Contributed by: mpalma@mac.com Thursday, August 03 2006 @ 06:24 PM PDT
Product Platform: MacOSX
Used Product For: Less than a month
System Info:
Comments
Authentication Failed - Ed Devinney
As noted, you need an AOL or AIM screen name - www.aim.com is the easiest way. Paid AOL users get more choices & a little higher quality, but the free service is quite good.Thursday, August 17 2006 @ 11:28 AM PDT
Authentication Failed - Ed Devinney
For now you need an AOL or AIM screen name - either is free.Wednesday, November 29 2006 @ 08:24 AM PST
.Mac now supported! - Ed Devinney
Check it out - you can now listen to AOL Radio with a .mac account!Friday, December 15 2006 @ 07:32 AM PST
Authentication Failed - MrMediocre
No. You need to have an AOL registered screen name, which is easy enough to do via their website.Reply to This
Monday, August 07 2006 @ 10:53 PM PDT