GA-AB350M-DS3H No Ethernet detected

[JasonSandeman]

Good afternoon,

I was wondering if anyone here would be able to help me with a problem I am having with my new computer. I built it with my son 4 months back, and up until the other day it was working beautifully.

I went to use it the other day, and I saw the internet was not available (it is an ethernet connected computer.) I closed everything, then restarted the computer, to see the same thing.

I tried the Network Troubleshooter, which told me that it did not detect any LAN, and that I would need to download the drivers and reinstall.

I suspected maybe the cable was faulty, so I switched it out with a new one, to no avail.

I downloaded the drivers on another computer, then put them to a USB key to install. It got through the installation, and I was met with an error that stated:

"network controller was not found if deep sleep mode is enabled"

So nothing was installed.

I looked in the device manager, and there isn't anything in the network adapter section (and there is no "other" section.) I scanned for hardware changes, and nothing. It's as if it were not even there. Edit: I even toggled the "Show Hidden Devices" and no dice.

I tried flashing the BIOS, but to be honest, I'm not sure if I screwed something up because it stated it wasn't compatible with my system.

I'm at a loss for what to do. Aside from buying a new mobo, is there anything that I can try?


System Specs:

Windows 10 Home Edition
Ryzen 5 2400g
GA-AB350M-DS3H
Deepcool 500W Power supply
125 GB Kingston SSD
8 GB Aegis DD4 3000 Mhz RAM
NVidia GeForce GTX 1050Ti

 

[drea.drechsler]

I assume you checked BIOS to make sure the on-board LAN adapter is enabled?

Toggle 'Show Hidden Devices' in View in Device Manager and you may find it then.

I'd be concerned that you can't update BIOS: are you sure you've the correct BIOS for the motherboard?

 

[JasonSandeman]

I tried to check that BIOS, but it was very complicated, and I didn't see where to click. There were two places, and I tried them both. I don't know if it did anything. I am not very strong in this area, that is for sure.

I did check for hidden devices. I forgot to mention that. (I edited the above question to reflect that.)

All I see is WAN Miniport. I'm not sure what that is.

I downloaded the BIOS flash from the GIGABYTE site associated with my board, but when I double clicked it, it showed as an error. (I think I messed up though, because I just read you're not supposed to do it inside windows?)

I guess it's painfully aware that I am a NOOB to all this. 😉

 

[drea.drechsler]

I tried to check that BIOS, but it was very complicated, and I didn't see where to click. There were two places, and I tried them both. I don't know if it did anything. I am not very strong in this area, that is for sure. ...

Your best choice might be to simply do a 'CMOS reset'. This will reset all BIOS settings to default which should include leaving the LAN circuitry fully enabled.

To do that, first refer to your manual and locate your CMOS reset pins on the motherboard. Turn the computer off and disconnect the power cord then remove the CMOS battery: that's the round silver colored 'coin' battery located on the motherboard.

Once it's removed, short the two CMOS reset pins together with a screw driver.

Hold the short for 10 or 15 seconds at least.

Then put the battery back in it's holder and reassemble the PC and you're good to go.

Hopefully this does the trick.

 

[jason201]

Few things you should do:

1. Check that the onboard network card is enabled in the BIOS, it should specifically be in Periperhals>Realtek PCIe GBE Controller.
If it's already enabled, then try disabling it, saving & exiting the BIOS, and then re-enabling it.

2. Reset Winsock, as explained here:
https://kb.wisc.edu/page.php?id=31480

3. Goto Control Panel>Program and features, and uninstall the Realtek LAN/Ethernet driver.
Restart the computer when done.

4. Download this driver from another computer, and extract it to a flash drive
http://download.gigabyte.us/FileList/Driver/mb_driver_lan_realtek_10.026.0521.2018_dch.zip
Then install it on the said computer (right click setup.exe and choose "run as administrator")

5. If you're still not having any luck, then it could potentially be a firewall/internet security software conflict.
If you're using a 3rd party firewall or internet security software, try uninstalling it and see if that helps!