I am trying to ssh into my new raspberry pi 3 from my laptop. I don’t have an HDMI monitor, hence I am trying to setup a headless connection. The led in pi and LAN port are blinking. My laptop (Ubuntu) shows that ‘wireless connection 1’ is established. But when I ssh, it shows ‘connection refused’. I have connected to my raspberry pi to laptop locally, no static ip. I don’t know the reason for my problem. Any Idea friends ??