I just bought a Linksys Etherfast 5-port switch. The manual didn't give me any instruction at all about where to hook up anything. So I just plugged the incoming internet into the uplink port and the PC and laptop into ports 1 and 2 respectively. The PC works, but the laptop doesn't. My friend told me that I would have to release the IP from my laptop. Which I did but when I tried to renew it would time out because it couldn't find the DHCP. What am I doing wrong here?