Hi guys, I'm having some issues getting my network card to connect at 1.0 Gbps Full Duplex. I suspect I'l end up just purchasing a new NIC for this issue, however, any suggestions or anything I might have missed would be appreciated. I've recently purchased a TP-link gigabit ethernet switch (TL-SG1005D) to upgrade my network as I've received a new Virgin Media superhub (Which is a cable modem/router with Gigabit ethernet ports). My desktop PC has an onboard RTL8168C/8111C Family PCI-E Gigabit Ethernet NIC (NDIS 6.20), I have wired this to the switch and have configured the NIC to auto negotiate. I get a flashing amber light on the NIC initially which turns to green, however, Windows acts as if the cable is unplugged. (No connections are available/Red cross on the network icon) I've tried this same cable from the same switch on my Laptop and I'm able to connect at 1Gbps with no issues. If I configure the RTL8168 to 100Mbps or 10Mbps it will connect in an instant with no issues at all, but as soon as Auto negotiate or 1.0 Gbps Full duplex is selected it will no longer connect. I've downloaded the latest drivers and still have no success. Any idea's?