I recently upgraded my internet to a 200 Megabit connection, however, I seem to have some trouble with the NIC on my mainboard (Gigabyte Z77X-UD3H Rev 1.1).
For some reason Windows detects it as a 100 Megabit NIC and not a Gigabit one, which causes bad download speeds on my PC.
It is definitely not a problem with my router or the cable, as I am getting the full 200 MBit download speed when doing a speedtest on my (wired) Xbox and I've switched cables to make sure it wasn't a faulty wiring or anything.
I also made sure that the Speed/Duplex setting is set accordingly in the Windows settings, made sure the drivers are the lastest one available, etc.
Kinda out of options here... Does anyone have an idea on what I could try next? That's really a strange one :-/