Realtek 8112L Gigabit LAN controller

**KonoKanji** · July 19th, 2010

So my new Computer was workin' fine until one mornin' I lost power to my desktop due to a blackout during an update and my LAN built into my motherboard stop working. The motherboard claims that it's enabled in the bios but it doesn't show up in my Ubuntu installation nor my XP boot. It's a ASUS P7P55D motherboard. Any info would be helpful. Thanks.

Note: please excuse any grammatical mistakes that don't make any sense because I am typing this out on an iPod.

**cariboo** · July 19th, 2010

If the nic doesn't show up in Windows or Ubuntu, try resetting the BIOS using the jumper on the motherbaord, to see if that makes a difference.

**rubylaser** · July 19th, 2010

If the BIOS reset doesn't work, which I'm guessing it won't, you probably have a hardware failure. If that's the case, just pick up a new PCI gigabit NIC card.

**kepps03** · July 19th, 2010

Originally Posted by KonoKanji

So my new Computer was workin' fine until one mornin' I lost power to my desktop due to a blackout during an update and my LAN built into my motherboard stop working. The motherboard claims that it's enabled in the bios but it doesn't show up in my Ubuntu installation nor my XP boot. It's a ASUS P7P55D motherboard. Any info would be helpful. Thanks.

Note: please excuse any grammatical mistakes that don't make any sense because I am typing this out on an iPod.

Lost power is key here for me. I think the power lost fried your NIC.

**KonoKanji** · July 19th, 2010

Originally Posted by cariboo907

If the nic doesn't show up in Windows or Ubuntu, try resetting the BIOS using the jumper on the motherbaord, to see if that makes a difference.

So, I popped it open and switched over to the 2,3 jumpers to briefly reset it, popped it back on and the NIC came back to life! Brilliant. I would have been so disappointed if the controller had already burnt out on the board I just invested in.
Thanks for the prompt responses, guys. Much appreciated.

**ColonelSammy** · January 24th, 2011

I had a similar problem, also with an Asus P7P55D motherboard, although I didn't have any power problems. Clearing the RTC RAM (moving the jumper from pins 1-2 to pins 2-3 also fixed the problem for me.