limited or no conectivity

I have been using Comodo Firewall Pro on a number of systems for the last month. On one of my laptops I was out of town and accessing the internet at the motel. I was able to get on at 4:00 pm without any problem (their wifi is unsecured, doesn’t even have simple WPA/WEP) got off and went to take care of business. Since then I haven’t been able to get on any wifi including my own in my home. I just keep getting “Limited or No Conectivity” even though the connection shows 5 full bars and excellant. If I turn off Comodo then I can connect (by reparing the network connection) If I don’t turn it off when I try repair it always fails.