Hi, I've been searching the forum as well as the net for a solution to this problem, but can't find anything that's exactly like my situation, although it seems like a very common scenario.
I have a Scientific Atlanta cable modem with 1 Ethernet port through which I used to temporarily host a site via Apache as well as hosting online games. Recently I bought a TPLink wireless router which I connected to the cable modem and are using it to access the internet. The problem is that I can no longer host anything; ie. no other computer on the net can connect to mine.
I assume that the cable modem doesn't have an IP address range since it only has one port and since everything works fine when I connect directly through it, so what I did was a reserved an IP in my wireless router for my computer as well as disabling DHCP. I'm sure I'm missing another step, so if somebody can help me out here I'd be much obliged...