I recently bought a RPI 3 model B. After a successful installation of the Raspbian, I tried to connect to my own WiFi. Unfortunately, I couldn't. After clicking on the SSID of my network, there popped up a small box where I could put in my network password. So, did I, but after clicking on OK, nothing happens; only the small box disappears. I tried to Google for a solution but I couldn't find anything working and it's driving me crazy.
Thanks in advance.