NIC and Onboard Ethernet -- getting device manager error code 10

[agasperino5]

Just recently there was a power outage, and afterward I noticed I couldn't connect to the internet. I did everything I knew to try and fix this, but nothing seemed to work.

In device manager, I saw the yellow triangle (!) next to my network adapter. The network adapter I use is the onboard one on my Asus P8Z77-V Pro motherboard. I uninstalled/reinstalled the drivers, disabled/enabled from the bios -- all of this led to nothing. I was still getting the error code 10.

I figured that it was fried from the power outage last week, so I went out and bought a NIC and after putting it in and installing the drivers, I'm getting the same error code 10.

Windows is telling me that the drivers are up-to-date, and I know for a fact that the NIC I put in isn't dead (the guy I bought it from had it in his computer, and it was working fine). Any help would be greatly, greatly appreciated.

The one I put in is a Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC (NDIS 6.20). Once again, the motherboard is an Asus P8Z77-V Pro (whatever ethernet NIC comes with that is the one I have used in the past).

 

[jsmithepa]

Did you go into BIOS and DISABLE the on-board LAN?

 

[agasperino5]

Yes I did. I did it again and now, it looks like the on-board LAN is working fine actually.

Now I am able to see the on-board LAN under Network Connections as an adapter. However, troubleshooting says that ""Local Area Connection 3" doesn't have a valid IP configuration". Under Network Connections, it says I'm connected to an unidentified network. I checked out Local Area Connection 3 to see if anything was going on in terms of packets received or sent; there have been a few hundred packets sent over the past hour or so, but none received. Under ipconfig/all, I have nothing under default gateway, and my Autoconfiguration IPv4 address is 169.254.59.107 (preferred). I am also getting something weird under the dns; it's reading fec 0:0:0:fff:1x1, fec 0:0:0:fff:2x1, fec 0:0:0:fff:3x1.

When I tried to do an ipconfig/release, I was getting a weird message. Cmd said "an error occurred while releasing interface loopback pseudo-interface 1: the system cannot find the file specified".

I know at the very least that it's not a problem from the ethernet port from the wall. I plugged a different computer into the ethernet port and I get internet access. I also tested the cat5 cable I am using on a different computer, and it connected just fine.

So if it's not a problem from the internet coming from the wall, then it is surely isolated to a problem with my computer. The on-board lan does recognize a network, but it says it's unidentified. The troubleshooter tells me that the local area connection doesn't have a valid ip configuration -- but how is that so when another computer can access the internet from the same port with the same cord just fine?

 

[agasperino5]

Another thing I should say. Not sure if this would help or not.

When I first noticed the problem 3 days ago, I did was the troubleshooting told me to do. It says it was a modem or router connectivity problem, thus go and reset the modem, let it do it's thing, then do the troubleshooting again. I did all that and it work for a day. 2 days ago, I lost internet again, and did the same troubleshooting, and connected fine after. However, today when this happened, I tried to do the modem reset for the third time -- however it did NOT work.