I hope someone can help. I have 2 pcs running XP home. Pc1 is connected to the internet with USB modem.I have a ruiter and want to share connection with pc2. The ruiter requires a connection from the modem to the WAN port. Do I make this connection in addition to the existing connection? On the ruiter I have LAN ports 1-4. One cable will go from say LAN 1 to PC2, now, do I need another cable running from say LAN 2 to PC 1. I'm new at this, so I hope my question makes sense.