I'm going to try escalating this issue to the Comcast corporate employees that are available to these boards. You should get a reply here in your topic.
Hi rcatal. I can assist with the hotspot you are having trouble with.
Please tell us a little more:
Can you confirm if the WiFi is accepting your username and password?
Are you able to join the Hotspot, and once connected, it fails to connect to the internet?
Thanks for the additional info.