I ran into some good info on Comcast, and since many of us in the area use Comcast as an Internet provider, I thought I should share it. It shows the ports and services that are being blocked by Comcast for security reasons, and some alternatives to consider. http://customer.comcast.com/help-and-support/internet/list-of-blocked-ports/ This can help explain why some things will work on your Comcast Internet connection and some won't. cheers, James -- --