I can narrow down the issue to a Ghost living inside the machine.     This behaviour is extremely strange. Since all the other machines are working fine with the same Router, we can eliminate the router to be the root cause. Since your computer is detecting other wifi fine, WIFI card is also good.    Download a copy of Driver and save it to desktop.  [URL]   Now go to device manager > Network adapter > Right-click on Intel Card and choose to uninstall (check the box which says remove device software)  Reboot  Check if you can detect wifi  if no go  Please run the downloaded Driver file and reboot again.   
Have Inspiron 7547 running Windows 10 with an Intel Dual Band Wireless AC 3160 network card. Changed ISP and it doesn't detect any networks.   Go 4 houses down the street and it detects all the neighbors' networks. Have installed newest Intel drivers.   All other PCs in the house don't have an issue.   Had ISP break the network into 2.4 and 5.0.   Still doesn't detect networks here. Down 4 houses (at a relative with same ISP) I can see networks and connect to the 5.0 mhz or 2.4. What could be blocking it from detecting networks?
Inspiron 7547 can't find WIFI networks here, but can down the street