Broadband :: Had ATT And Now Have Cable That Does Not Require Password?

Remove PPPoe settings on Vista. I uninstalled the att software but the pppoe settings remain and my computer says my network is unidentified and will only allow local connection. My XP computer had no problem making the change but the Vista one keeps saying it is an unidentified network. I have tried turning everything off and then restarting the cable and then the computer but it does not work. I have a wireless adapter and can connect the Vista machine to the network with no problem but need a wired connection for games I play so I need to fix the wired problem. I am sure the settings the ATT software changed is the problem but I don't know how to get into the system to fix the problem. There is no router involved. The router is built into the cable modem.