Question Neither ethernet port sees cable plugged in

Sep 21, 2022
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Hi, my pc says ethernet not connected.

System specs:
Windows 11
Ryzen 3800x
EVGA 3080 ftw ultra
X570 tuf gaming with wifi
TP-link PCIe network adapter TG-3468
Hopefully I am not missing anything important.

The story is ethernet port stopped working. The Wifi works fine. Bought a new Cat6 ethernet cable, still the same problem. I tested new cable to other devices and it works fine. Figured my ethernet port was bad. I purchased a network card, installed and updated drivers. No cables work in this port either. I disabled and re-enabled LAN ports from the UEFI, same boat. I also tried with the wifi disabled and only having one LAN port enabled and nothing. My next step is a bios reinstall? Any help would be much appreciated. Thank you.
 

Ralston18

Titan
Moderator
What Network adapters are listed via Device Manager? (Ensure that under the View tab that "Show hidden devices" is checked.

On your PC run "ipconfig /all" (without quotes) via the Command Prompt.

Post the results.

You should be able to copy and paste the results without retyping it all.
 
Sep 21, 2022
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Windows IP Configuration

Host Name . . . . . . . . . . . . :
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : rochester.rr.com

Ethernet adapter Ethernet:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address. . . . . . . . . : 28-87-BA-2F-76-68
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek Gaming GbE Family Controller
Physical Address. . . . . . . . . : 04-D9-F5-05-0B-BE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local Area Connection* 1:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 84-FD-D1-3A-09-31
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wi-Fi:

Connection-specific DNS Suffix . : rochester.rr.com
Description . . . . . . . . . . . : Intel(R) Wireless-AC 9260 160MHz
Physical Address. . . . . . . . . : 84-FD-D1-3A-09-30
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d012:d2d5:23f7:236e%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.143(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, September 21, 2022 8:06:41 PM
Lease Expires . . . . . . . . . . : Thursday, September 22, 2022 8:06:42 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 109379025
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2A-BD-B2-56-28-87-BA-2F-76-68
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled
Connection-specific DNS Suffix Search List :
rochester.rr.com

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 84-FD-D1-3A-09-34
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
 
Sep 21, 2022
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Shown in Device Manager

Bluetooth device (Personal Area Network)
Intel Wireless-AC 9260 160mhz
Realtek Gaming GbE Family Controller
Realtek PCIe GbE Family Controller
 
It is not likely a bios issue. Generally the ethernet port just does not exist. In addition the bios should not be in control of add in ethernet card.

This might be a driver issue but even that is questionable since when you do not have a driver it shows up in the device manager but not the the ipconfig command.

Disconnected state is almost always a cable. Since you tried a different cable and even a different ethernet board it is likely something else.

Maybe try to boot a USB linux image. If this sees the ethernet ports then you know it is something in windows. If linux also does not see it then it is likely hardware. Before you do something like reset the bios I would try another cable. There are massive amounts of fake cable being sold and maybe you just got unlucky. Key is the wire must be pure copper (no CCA) and have wire size 22-24 (none of that flat or thin cable)
 
Sep 21, 2022
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Well thank you for your help. I got thinking and decided to check everything over again. When my son and I were threading the cable down the wall we accidentally plugged in the old one to the router and the new one to the pc. Thanks again for your time. Hopefully this gives you a laugh.
 
In wall cables you should use keystones and wall plates. In addition to making the install look much cleaner it also reduce the chance that you need to pull a new cable through the wall. When you use a patch cord if you break off the plastic tab or other minor damage you have to repull the cable.
The keystone could fail but it is rare and those are easily replaced. Many keystones no longer need a punchdown tool to install.
 

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