My new Raspberry Pi 3 is great, but I am facing one difficulty: my router is in the lounge (one floor down), and my laptop has no Ethernet port. Since I am using SSH to control the Pi, I always have to connect it to the router via an Ethernet cable. Also, I can't use the GPIO pins from my room as I have to be close to the router.
Is there any way to automatically connect my Pi to wifi right after booting up? In other words, I want to power up the Pi without any network connection, and it should automatically connect to the wifi.
One thing I tried was to edit the /etc/wpa-supplicant/wpa-supplicant.conf file to include only the SSID and PSK of my home's wifi connection. This did not make the Pi connect automatically to wifi.
Any help would be greatly appreciated!