Can not access ATT email using: Internet Explorer; Google Chrome; Mozilla Firefox.
Can access ATT email using: mail.yahoo.com,
Password has been changed "too numerous to count" times.
Can sign in to ATT account site.
A new external modem has been acquired. Rep at ATT deemed modem was defective. It was a 2Wire Gateway, approx. 15 years old. And still no sign in possible.
I'm able to access homepage for Internet Explorer, Google Chrome, and FireFox.
Reps at ATT says they have done all they can do and the only thing left is to reformat the computer. Can this be avoided?
This computer is: Windows 8
Software/Hardware used: ATT email powered by Yahoo