Posted 14 April 2009 - 06:06 PM
Contact ATT and tell them that you now only have one computer connected and you are experiencing the same problems. They generally blame the other for such problems. You may have Noise in your phone lines and this is causing a bad connection. ATT can solve the problem if its from the pole to your house if its a problem in your house you will have to take care of the problem your self or pay them to install a new jack (with running a new line).
Certified CompTia Network +, A +