I recently had my house wired, for ethernet. My computers all work, but recently i purchased three new computers. Two desktops which are the identical, and a Lap Top. I connected the first desktop and it worked on the internet. I connected the second and it says there limited internet? I ran into this same probem with the lap top. I tested the ports by getting a fourth laptop and they all worked. I have additional older computers that work, buts it just this new hp desktop and toshiba laptop that refuse to find a connection. I even tried manually entering the ip #'s, but they never found the router, or anything else. If they automatically get the ip it says low limited or low connectivity. Those same ports work on any other computer. They computers worked anywhere else, but one these two connections? I have a router connected to a switch. Anyone know how i might solve this problem?