Network adapter disappeared

[porina]

Mobo is Asus B650E-F. Woke up and turned on the system and... no network. Got on using wifi for now. It is built in into mobo and is an Intel I225-V rev 3.

 

Things I've tried:

Restart the system - no change

Reseat the cable on both PC and switch end - no change

Tried alternate port on switch - no change

Check BIOS, network adapter is enabled. Tried disabling it then re-enabling it again. No change.

In device manager, the device is NOT listed at all.

 

Things I haven't tried yet:

Different cable as I need to see if I have a spare long enough. If device is not appearing in Windows at all not sure this'll help.

Update bios? Shouldn't make a difference, but will try anyway. Latest bios is more for Zen 5 updates so I didn't bother before for my Zen 4 CPU.

 

Any other thoughts?

 

Mobo is still in warranty but I really don't want to be swapping it out just for that. If this can't be resolved I'll probably get another NIC instead.

 

[whispous]

Given it doesn't show up in device manager (not even as an unknown device, I assume)

 

It's likely that it fried. Got any spare PCIe slots?

 

Only other thing you can do to verify this is launch a live ubuntu image and see if a different OS can see/use it.

[porina]

1 minute ago, whispous said:

Given it doesn't show up in device manager (not even as an unknown device, I assume)

 

It's likely that it fried. Got any spare PCIe slots?

That is certainly a possibility. Assuming it is soldered and not a module then it wont be a loose connection. There are PCIe slots and I'm already looking at the going rate for a 2.5GbE.

 

1 minute ago, whispous said:

Only other thing you can do to verify this is launch a live ubuntu image and see if a different OS can see/use it.

Good idea. Will see if I have a spare USB stick I can use for that later. I still want to try the bios and cable first not that I expect either to do anything. At least I can rule them out.

[Mark Kaine]

reset CMOS fully? (as in leave battery out for at least 30 minutes) 

 

also yeah checking in  Linux is a good idea too.

[WereCat]

Try drivers. I had this happen on a W10 PC recently where for whatever reason drivers just stopped working for the Intel NIC. 

[porina]

1 minute ago, WereCat said:

Try drivers. I had this happen on a W10 PC recently where for whatever reason drivers just stopped working for the Intel NIC. 

It doesn't show up at all in Device Manager, so there is nothing to update.

 

 

I've done the bios update, which includes resetting the bios settings. No change. I do have one new unknown device now, but I think that is from the AGESA update and online solution for that one seems to be reinstall latest chipset drivers which I'm about to do.

 

 

 

[porina]

12 minutes ago, WereCat said:

Try drivers. I had this happen on a W10 PC recently where for whatever reason drivers just stopped working for the Intel NIC. 

Small correction. I've edited a screenshot into OP. If I show hidden devices, the system knows the device has existed at some point, but is showing it as disconnected. In other words, not present. Looking more and more likely it is dead.

[mariushm]

Did you change the video card or reseat the video card just before this happened ? 

 

I think the ethernet chip and its components are to the left of the pci-e slot and when inserting a video card it's possible to hit the pcb with the metal bracket.  I damaged a realtek chip this way on a socket AM3 motherboard.  I'm not sure because I can't find any hi-res pictures of the board.

 

The error code makes me think it's probably a problem with the connection between the chip and the mobo (pci-e lane traces) or maybe the oscillator/crystal of the chip is broken

[porina]

4 hours ago, mariushm said:

Did you change the video card or reseat the video card just before this happened ? 

No change to hardware between turning system off last night, and turning on this morning. The only physical impact is me pressing the power button down.

[porina]

I saw a comment elsewhere suggesting something went loose. So I thought I'd put the cable back in to double check. Green light. It's detected now. I tried moving the cable around a bit in case it is a loose connection. Light stays on. So it basically randomly disappeared for some days and just decided to work again now. Don't know what to make of that!