Hi guys, sorry to intrude, but I had the exact same problem as KCDP76AT. I uninstalled AT&T Communication Manager and my internet does not work. It says Identifying......for a while then it says "Limited or No Activity" then it does not connect. I've tried "automatically repair IP settings"; basically every option they've given me. I have Windows Vista, so I tried the solutions that TerryNet submitted with high hopes it'd work for me, but it didn't. If you could please please pleas HELP ME I'd GREATLY appreciate it! Thank you!!