I mean on the devices themselves, not from Comcast. You can check your network properties and see if they're setup that way or not.
IF by chance that is the issue, just change it to DHCP. I'd be surprised if all of your devices are set like this, but since your phone does connect, there's a good chance they may be...especially if someone else set them up for you and people rarely set their phones for a static IP address. If by chance you do need more advanced help, I do run my own IT Service & Support company out of home and am happy to look at things, but I am in Denver.