belikemike,
No. The Internet protocol will not allow you to split an Internet connection without following the rules of the protocol itself. Routers, hubs, and switches will split the cable for you, as well as adhere to the rules. Why you're having so much trouble with your router, I can't answer, but let me ask you a few questions.
1st what's the name of the manufacture and model number of your router? 2nd, does your router support either virtual servers or port forwarding? Ether one of these options are essentially what you need to host a game, or to allow connections otherwise blocked by the router.
You should see a table with the following attributes, which you can fill in:
Enable/Disable
Description
Inbound Port (port the game server uses)
Type TCP/UDP
Private IP address (ip address of the computer behind the router)
Private Port (port the client game uses, usually the same as the server)
Most new routers have a drop down menu where you can select the game type or it might even have the actual game. Once selected, the router will fill out the necessary information.
Perhaps you knew all of this, and your router is just malfunctioning. Either way, let me know your model number, and I’ll check out the user manual for you and post you some real directions. Otherwise, good luck.
J_