Is my LAN dead?

chesteracorgi

Distinguished
My LAN (Broadcom BCM57781) on my ASRock Z77 Extreme6 has gone down (at home). The network is functioning, but there is no indication from the LEDs (at the LAN Port) that the LAN is alive. I have tried reinstalling the drivers, and even the OS. No Joy from the LAN. Time for a RMA?
 
No there is no internet on that machine. Perhaps I should have been clearer: the Broadcom chip does not connect to any network, and there is no indication of it in the hardware manager. There is no function from the chip and no LED indicating activity.

The broadcom chip seem to have gone south and I am RMAing the motherboard.