Procedure Question on Email changes and security

[John G]

I went wireless and broadband this fall after a lot of nagging from daughters and wife. System works great, should have done it long ago.

BUT.... I find problems getting past security at this site on anything but the new system. There are four family computers I use at home or when I travel, plus the occasional public library / hotel system. Is there a connection between the log on system using email addresses and the email address associated with the computer you are using? I hope not. Any suggestions?