So to give a small background on what's going on:
A while ago, the ethernet port on my motherboard stopped working. I tried and tried to fix it, but it simply would not work, so I ended up buying a PCI ethernet card. It worked great for a long time, and I never had any problems with it. Yesterday, I unplugged my ethernet cable while my computer was still on, but when I plugged it back into the PCI card, it suddenly wouldn't reconnect. The card still has the flashing Link/Activity lights on, the router is still showing a connection, but I am not connected to the internet and I am not seeing it in my device manager. I have downloaded the drivers for it, updated the drivers for my motherboard, reset my computer multiple times, unplugged it and plugged it back into the PCI port, everything. I cannot figure out what's wrong.
I am running Windows 7, have an Asus P8Z68-V Pro motherboard, and am using a Trendnet TEG-PCITXR Ethernet card.