Raspberry Pi 3 - ***Wifi Mega Thread***

sorry, i write here because this is the raspberry pi 3 wifi and i write in the linked post because there we talk about wifi under gui. i think this thread is better than the other for raspberry 3 but information are in the other so i’m confused.

in the other thread DBMandrake suggests me about wifi adapter, but raspberry 3 have not wifi adapter : wifi chipset is embeded.

my boot/config.txt file is

gpu_mem_1024=256
hdmi_ignore_cec_init=1
disable_overscan=1
start_x=1
dtoverlay=lirc-rpi
disable_splash=1

NOOBS Auto-generated Settings:

hdmi_force_hotplug=1
hdmi_edid_file=1
gpu_mem_256=112
sdtv_aspect=1
dtparam=gpio_in_pin=18
gpu_mem_512=144
dtparam=gpio_out_pin=17
dtparam=audio=on

but connmantcl -> technologies show me any wifi connection.

what should i try to do? thanks.