RE: Connecting two pc's
ok let me get this clear. The setup you are trying to create is the following:
[Internet]-----------[Modem-PC1-NIC]-------<crossover cable>------[NIC-PC2]
In which you can currently reach the internet only from PC1, right?
This setup is possible without a router by allowing the internet connection on PC1 to be shared with other PCs in your network. You can do this by going to your Internet Connection's properties (right-click>Properties). Select the Advanced tab and check the box which says something like "Other network users may use this computer's Internet connection." (I'm on a Dutch machine so I don't know the exact string)
After that, connect PC1 to PC2 using your new crossover cable.
Setup both PCs to use the same workgroup by right-clicking My Computer and selecting Preferences. Select the Computer Name tab and check whether they already use the same workgroup. If they are both in a different workgroup, use the Change... button to change one of them.
Now it's time to set up the IP address and submask for your network. Go to your LAN-connection's properties (again, right-click>properties), select Internet Protocol (TCP/IP) and click the Properties button.
Now, select "Use the following IP" and type in an IP-address (recommended ranges are 10.0.0.0 to 10.255.255.255, 172.16.0.0 to 173.31.255.255 and 192.168.0.0 to 192.168.255.255)
In the Subnet mask field, fill in 255.255.255.0
On the other pc, use the same settings, except for the IP. Only the last number of the IPs should differ eg: PC1 has 10.0.0.1 and PC2 has 10.0.0.2
If you still can't ping PC1 from PC2 or vice-versa, check your firewall settings, NIC status in the device manager and maybe even the new cable you bought.
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