What causes all network connections to die on a PC

[Grim5]

So I had a weird situation yesterday, I'm playing a game on the PC and afterwards I close the game, open a browser and notice it won't open.

Then I see, no internet connection over Ethernet. I check the router, restart, still no connection. Then try wifi, PC refuses yo connect to the wifi, then I try hotspoting from my phone and a second router, nothing works.

I disable and re-enable the network device in windows, restart the PC and it still doesn't work. I checked system logs to see if windows just did a weird update, but no updates in a week. I simply turned that PC on and played a game I've played before and then the network connection died.

So at this point I'm worrying that the motherboard's Intel network chip is dead. But eventually I come across a setting in windows that lets me reset all the windows network settings and reinstall the network device, it requires a reboot. Did that now magically it's working again..

So what happened, I still don't understand

 

[FredFlint]

I had a lot of strange network issues when I user the Intel NIC, I would have to re-start my PC and router to get it back. I just gave up and switched it off in the BIOS as even if it’s not been used it messes up other network devices if its not disabled in the BIOS.

 

[robinbanks]

Any events showing in event log?

 

[Grim5]

Any events showing in event log?

Actually yes, I didn't think to check that.

Here are the two errors it shows

 

[Semple]

That second error looks to be from your WiFi rather than Ethernet?

At first it sounded like the chip had perhaps died, but if a reset & reinstall has worked then that's clearly not the case.

I think this one will go down as a mystery, as the NIC is no longer in that state it's harder to figure out what went wrong.

 

[FredFlint]

Actually yes, I didn't think to check that.

Here are the two errors it shows

Mine worked for about 4 months before getting that error and then it got to the point that it was unusable. Might be time to get a USB NIC.

 

[Duke]

Mine worked for about 4 months before getting that error and then it got to the point that it was unusable. Might be time to get a USB NIC.

Eww PCI-E over USB for anything network related.

 

[RSR]

Intel I225's can be very hit-or-miss at times, if you haven't already done a check you are on the driver which corrects the random disconnects and another thing worth checking is to disable the power saving feature on them.

Also, check Windoge updates have not installed anything if this is a recent thing.