How to forget saved wifi network on a Rasberry Pi 3 Model b+

• OS Rasbian 

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
ssid="WIFI1"
psk="passwordwifi1"
}

network={
ssid="WIFI2"
psk="passwordwifi2"
}

• ตามนี้ลบ SSID ใหนที่ไม่ต้องการจัดเลย

Ref

• https://medium.com/@spobwoode/how-to-forget-a-saved-wifi-network-on-a-rasberry-pi-4cbbcf53b128