Networks

Cross connect not necessary with coax cable, so you're ok there, but you may want to check your "protectors" which are actually 50-ohm terminators. Check them with an OHM-meter, should read 50 ohms. Should have T's and terminators on the cable.

Check the lights on the network and be sure they are lighting with connection activity when you connect the two PCs. Then be sure you use correct/sequential IP scheme. (I don't know if internet sharing requires VALID IP addresses or not, or proxy/NATor not) but check with your ISP. Cable modems are a little different than dial-up configurations in that the cable modems are configured real-time by the ISP and may not allow a sharing connection without at least a proxy server to fool it. Check with your ISP.


If you ever need to use internal addresses, it really doesn't matter whether u use 10.0.0.0 or 198.#.#.# or any other scheme, as long as it's tranlated correctly to the internet if it is used.

First start off by checking your NIC settings. Make sure that the IP/subnet mask are correct for both. Check your cable it could be improperly terminated or bad tips connecting to your NIC. Last is to make sure the NIC is good by checking the lights on the back of the card.

Your host PC (which has the cable hookup) can have a couple of different configurations. Either 2 nics, one for sharing and one for he cable modem or just one nic connected to a hub and the cable modem plugged into your source or uplink (my terminology could be wrong on this) on the hub (sually on the end of the hub, the manual should be able to tell you which one it is). If you use the later, I don't think you can use the socket directly next to it, you'll have to skip one and go onto the next available socket. Of coarse you'll need a TCP/IP stack installed left unconfigured. There should also be an uplink switch on the hub, make sure you got that turned on.

The other PC should have one NIC with TCP/IP installed configured to obtain an IP address automatically.

Install internet connection sharing. If it's already installed, you may want to uninstall it, reboot and then reinstall it. I've had some headaches getting it to work if I already had it installed and then had to reconfigure my network

I think u r getting connected as the computers find each other ...
try using one of the internet sharing programs which are plenty on the net ...

Your statement that when you assign IP addresses in both PC's makes you lose your Internet connection makes me wonder if you are binding the wrong addresses to the wrong cards. That's easy to do when both cards are the same brand and model and thatwould explain why your computers can't communicate with each other.

You need to first get the Internet connection working using DHCP. Then, on your computer, you should set up the second NIC and use a static IP address of 192.168.1.1 for your machine with a subnet mask of 255.255.255.0 and a DNS of whatever your ISP supplies as a DNS address. On your son's computer, set the NIC for a static IP of 192.168.1.2, a subnet mask of 255.255.255.0 and a gateway address of 192.168.1.1. Then, try and ping from his computer to yours, and from yours to his using these two addresses. If it works, then you should also be able to share files, etc. and you can install Internet Connection Sharing to give your son access to the cable modem.

The only other thought I wou