Hello,
Since when this happens you may have no internet access, first do one of these to have access:
* Bluetooth tether to your cellphone.
* Ethernet cable connect to your router - box
Then do a Windows update and then your drivers via Device Manager. I had Qualcomm & Realtek network devices for my network, but I also updated all of my drivers .
Restart the PC and still it didn’t work, though it solved lots of my other issues . So what worked???
* Disconnecting my router - box and reconnecting it
And voila! My Asus PC could now see my box again.