Asus Z97-a onboard ethernet not working

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shbriggs

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Jun 29, 2012
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10,510
After a fresh install of windows 8.1 via disk the network adaptor on this motherboard shows up in device manager with a yellow warning symbol (need to install drivers).

I have attempted to use the following drivers with no success:
1) The intel 1218 drivers from the Asus motherboard Disk
2) The intel drivers from the asus website for my motherboard (happened to be same version as the disk
3) The intel drivers directly from intel which was a much newer version released february 2017

In all cases the drivers install correctly but I can't get a full connection to my router/modem combo, they always read unidentified network. If I try and resolve this via windows troubleshooting the problem found is "Ethernet" doesn't have valid IP configuration.

I have tried ipconfig/release + ipconfig/renew on a cmd(admin) with no success receiving an error saying unable to establish connection with DHCP server.

Plugging my ethernet cable into my laptop and turning off wifi on my laptop gives me a stable connection, so it isn't the cable.

I contacted Asus support and spoke with a rep who had me uninstall the current ethernet drivers and instead install the turbo Lan utility from the asus website (I don't think he had a clue that turbo lan isnt an ethernet driver) and he ended up having to escalate the issue to his 'support team' they will contact me via email.

I would like to resolve this without waiting an indeterminate amount of time.

Here is the ipconfig/all

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Compfiler
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Ethernet Connection (2) I218-V
Physical Address. . . . . . . . . : 1C-87-2C-75-7A-B9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c125:52db:6bb8:9fdc%4(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.159.220(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 68978476
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-9F-10-44-1C-87-2C-75-7A-B9

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{DAC1B444-EA63-4734-AB4F-4304A432B22C}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\>
 
Solution
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The one you are looking for should say dynamic rather than static. This mean it learned it from the network.

It is very rare for a on board ethernet to go bad but I suppose it does happen. Lucky pcie ethenet cards are pretty cheap.
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shbriggs

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Jun 29, 2012
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10,510
Is there something in the ipconfig/all that would incline you to believe it may have failed? I ask because I was using this pc with full internet access 30 minutes prior to reinstalling windows.

I will try another hunt around for another cable though, see if that works, thanks.
 
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bill001g

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Aug 9, 2012
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It is strange you are getting a message about needed to install a driver. Normally when the driver does not exist or is broken you do not even get the interface listed in the ipconfig /all. It appears the port is up at a physical level...it does not say disconnected or error.

I will assume you only have a single ethernet port since some have 2 and they run different brands of chips.

You should be able to see the setting option for this nic since it seems to have even ipv6 running. I would first disable IPv6 just to make things less confusing. I would then manually set the ip address/mask/gateway and see if you get any further.
 
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shbriggs

Honorable
Jun 29, 2012
13
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10,510
Single ethernet port. The ipconfig/all showing is with the latest intel driver installed, i only mentioned trying the different ones because i had to install one in the beginning to get the port working at all.

I will try disabling ipv6 and see where that gets me, although I have never done that before I figure it should be pretty straight forward.
 
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bill001g

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Aug 9, 2012
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It is pretty straight forward which is why it is very strange. All you can tell for sure is for some reason you are not getting a IP address from the DHCP server. It is pretty simple you machine sends dhcp....someone give me a ip....router responds with ip. Static ip will make the test even simpler. There is a tiny chance it is the firewall blocking traffic but not very likely.
 
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shbriggs

Honorable
Jun 29, 2012
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10,510
Disabling ipv6 seems to change nothing except for the ipconfig/all output omitting those entries. Still connected but on an 'Unidentified network'.

I did notice the ipconfig shows that DHCP is not enabled yet my ipv4 is set to obtain ip and DNS automatically. It's very strange to me.
 
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shbriggs

Honorable
Jun 29, 2012
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10,510
Set to those specifications precisely. The router is indeed on 192,158.0.1 and the subnet mask auto-populated to 255.255.255.0 set the ip ending in 250. Verfied via ipconfig/all , disabled snd re-enabled the ethernet, and also tried rebooting. Still same issue.

I am able to access my router via my laptop on wifi, and the device table on the router doesnt even show the desktop as being connected at all.
 
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bill001g

Titan
Aug 9, 2012
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Try a ping to 192.168.0.1 even if it fails then try arp -a. What you are hoping to see is a mac address associated with the 192.168.0.1 ip.

If you get a ARP mapping it means the interface is working at a mac level. Something though is blocking traffic at the ip level.
 
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shbriggs

Honorable
Jun 29, 2012
13
0
10,510
Installed ubuntu 16.o4 LTS and the network didnt seem to be working there either. Well it would say it was connected but I would get a pop-up in the upper right about ever 30 seconds saying it had disconnected, the icon on the top bar seemed to be showing it was connected and traffic was happening however.

I tested the arp -a command and I'm not sure what a successful ARP mapping would look like, but I'll try to sum it up.

interface: 169.254.243.185 --- 0x3
then a listing of 4 internet addresses their corresponding physical addresses and the type which were each listed as static.
 
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