My HP printer won't connect over WIFI

Hey I am using hp laserjet professional P1102 printer and I am trying to connect it on my mac pro using OS El Capitan 10.11.4 and it won't connect to wireless

the only way that i could print is via USP cable . tried to do as you write before and as the manual of the printer and still have the same problem . can anyone help me with this please 😟