Let me start off by saying I am not network person. I develop software and have two internal servers where I host client websites and web applications. A while back Comcast changed my cable model. Prior to the change I was able to sit at my development PC and access each of the sites by their assigned URL. So, from my LAN connection on my PC I could connect to my sites via the WAN address. After the change, all I get "Page can’t be displayed" for all my sites.
I've talked to Comcast Support - the aget said he bumpted me up to a tier 2 support, that was two days ago and haven't heard a thing.
I have a Cisco Cable Model Model DPC3941B