NodeMCU ESP8266 on Arduino IDE doesn't detect Wifi I am using a NodeMCU 1.0 v3 and I am trying the example sketch (wifiscan) but it just doesn't pick up any AP in the house. My phone and laptops etc are able to pick up the APs though. 

Other sketches upload and work fine but the wifi aspect of it doesn't work. I even got an LCD sketch to work properly but it isn't able to find any access points or even join any access points. I have been trying to get it to work for hours now.

I first tried using the latest Arduino IDE (1.6.12), then I uninstalled and tried using 1.6.1 but no luck. My upload settings are NodeMCU 1.0 (ESP-12E module), 80Mhz, 115200, 4M (3M SPIFFS).
Your router might be using 5GHz Wifi which the ESP8266 doesn't support but your other devices likely do. Try setting your wifi network to 2.4GHz.