For some bizarre reason, at random times desktop 1 disconnects from the network. When i say disconnects, the computer sends packages of information but the router does not reply, therefore no connectivity. To resolve the problem i disable and enable the connection from the Network Connections in the control panel. Disconnection may occur anytime, i haven't noticed a pattern. The laptop though, has network connection while desktop 1 doesn't. Ive also tried bypassing the switch and connecting the wire form the router directly to desktop 1 and it still disconnects. With this configuration (wire directly to desktop 1, not through switch) i checked the connection status for the router port that desktop 1 is on, from the router configuration page and it shows that desktop 1 is connected, although desktop 1 sends packages and does not receive a reply. diagram: http://img311.imageshack.us/img311/6427/pcdiagrampk6.jpg