I have a Motorola docsis 3 cable modem connected to a 5 port Linksys switch, I also have 3 separate IP addresses assigned to me. In the past I've had 3 computers hooked to the switch run flawlessly, each one using its own separate IP address. I recently added a Linksys WAP300N wireless access point to my network so it could connect with a computer in another room, it has a Linksys WMP600N wireless adapter in it. My problem is: With the access point plugged into the switch, only 1 computer can get internet access a second will not. Plugged 3 computers back into the switch and all is fine. Add the access point and I'm down to adding 1 computer only .The Ap is set with 802.11N at 5 ghz and the wireless works great. STUMPED.