Little to do with channels, it's looking for ARP requests directly on the router. Your phone goes around screaming 'hey is STARBUCKS WI-FI' around?.. No respon

Little to do with channels, it's looking for ARP requests directly on the router. Your phone goes around screaming 'hey is STARBUCKS WI-FI' around?.. No response, so it goes to the next one it remembers.