Question Ethernet port not working ?

Mar 16, 2025
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Hi I have an ASRock B365M Pro4-F motherboard.

I recently changed to a smaller case for transportation reasons. I can not for the life of me get the ethernet port to work, Device manager says This device cannot start Code 10. I've tried reinstalling drivers, uninstalling drivers and disabling and re-enabling ethernet in bios. These are my pc specs:

ASRock B365M Pro4-F motherboard
Intel Core i9-9700K
MSI 1080 Aero 8GB OC
ssd
Ram

I tried everything I know how to do.
 
Other fixes:
* clear CMOS
* format OS drive and make a clean OS (Win) installation

Workaround:
* use PCI-E to network port add-on card
E.g these things: https://www.amazon.com/s?k=PCI-e+ne...ix=pci-+network+card,aps,224&ref=nb_sb_noss_2

Could be that your network port is damaged, hence why it doesn't work. PCI-E to network add-on card would give you new network port to use. Best to get at least dual-port card, since when one port should die, you have 2nd one as redundancy.

Final, absolute fix:
* new MoBo
 
Other fixes:
* clear CMOS
* format OS drive and make a clean OS (Win) installation

Workaround:
* use PCI-E to network port add-on card
E.g these things: https://www.amazon.com/s?k=PCI-e+network+card&crid=GIAV9WNOMT76&sprefix=pci-+network+card,aps,224&ref=nb_sb_noss_2

Could be that your network port is damaged, hence why it doesn't work. PCI-E to network add-on card would give you new network port to use. Best to get at least dual-port card, since when one port should die, you have 2nd one as redundancy.

Final, absolute fix:
* new MoBo
Yeah haven't cleared CMOS yet, before doing a fresh install I just swapped drives so I didn't have to reinstall everything. What's weird is the Ethernet port on the Mobo has a slow blinking orange led and a solid green one which means it's seeing data I just can't wrap my head around how the port is bad on a brand new Mobo. Is there an Ethernet port that I could buy and solder into the same spot or would that be a waste of time? My soldering skills aren't great but I'd have my grandpa do it, because he got trained to solder airplane wires together at NASA.

Thanks for the recommendation, any recommendations on a nic card that has wifi as well?
 
Is there an Ethernet port that I could buy and solder into the same spot or would that be a waste of time?
If soldering iron is brought anywhere near MoBo, say goodbye to your MoBo warranty.
Also, while the physical port may be fine, but the communication behind it (inside the MoBo), may be faulty. Hence why use PCI-E card, since that has different path to CPU.
Moreover, add-on card is far easier to install and use. Also, it would utilize one of the, otherwise unused, PCI-E slots on MoBo.

any recommendations on a nic card that has wifi as well?
Today's PCI-E network add-on cards doesn't come with wi-fi. Wi-fi cards are sold separately.
E.g best PCI-E wi-fi add-on cards: https://www.tomshardware.com/networking/best-wifi-adapters

As for PCI-E network card, any 10/100/1000 Mbps would do.
E.g here's one such dual-port card: https://www.amazon.com/Dual-Port-Gigabit-Network-Express-Ethernet/dp/B09D3JL14S
 
If soldering iron is brought anywhere near MoBo, say goodbye to your MoBo warranty.
Also, while the physical port may be fine, but the communication behind it (inside the MoBo), may be faulty. Hence why use PCI-E card, since that has different path to CPU.
Moreover, add-on card is far easier to install and use. Also, it would utilize one of the, otherwise unused, PCI-E slots on MoBo.


Today's PCI-E network add-on cards doesn't come with wi-fi. Wi-fi cards are sold separately.
E.g best PCI-E wi-fi add-on cards: https://www.tomshardware.com/networking/best-wifi-adapters

As for PCI-E network card, any 10/100/1000 Mbps would do.
E.g here's one such dual-port card: https://www.amazon.com/Dual-Port-Gigabit-Network-Express-Ethernet/dp/B09D3JL14S
Thank you so much!