Chances are you only have one of those software firewalls running. Look under firewalls in the Security Centre. If it says that the firewall from your AT&T suite is on then the Windows firewall will be switched off. Leave the firewall on your router on as it will not cause any conflicts.
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.