I'm setting up the network for a company, and facing a weird issue. The network is very simple: An xDSL modem/router, a switch, a bunch of windows clients (XP, vista, 7). The room is wired and provides RJ45 plugs in the walls, which are all converging to the switch, which is uplinked to the router. The DSL router also serve IP addresses via DHCP.
Here is my problem: - One of the clients (Vista), does not work if it's plugged into the wall, but works when I connect it directly to the switch. My first guess was that the wall plug was the culprit, BUT when I connect my linux laptop on this plug, it works perfectly. On the Vista machine, when I look to the network adapter with a plugged in cable, the LEDS of the NIC are green but DHCP fails, and putting a static IP does not help.
I'm running out of ideas... Can you help me ? Thanks in advance!