Hi,
I have an Asus P8Z77-V mother board with the stated NIC. The latest drivers are installed: Intel Pro Set Version 17.0.200.2, Driver Version 11.16.96.0. I also have the latest BIOS.
I must force my NIC to 10 Mb/s (half or full duplex works) in order for it to recongnize any connection at all. Auto-negotiate and 1 Gb/s yield no connection at all, and the 100 Mb/s setting yeilds a cycle of connects and disconnects and an unresponsive system. (Sometimes my Display Adapter driver drops out durring this, too.) A connection with a D-Link router seemed to work fine, but a connection to an old Linksys router or to my apartment's ethernet jack (managed by Korcett/SuddenLink) yields the stated problem. My NIC from my previous motherboard works fine, and I have tried multiple Cat 5 cables and recently a Cat 5e cable with the same result.