ESP32 Forum

Hi all,

Can anyone tell me how the ESP32 decides which AP to connect to when there are multiple APs with the same SSID? For instance, in mesh networks there may be several APs with the same SSID and different BSSID. If I tell the ESP32 to connect to the SSID (and not the BSSID) how does it pick one? Does it use the lowest RSSI?

Thanks,
Jason

I guess first one that catches the signal

vonnieda wrote:Does it use the lowest RSSI?

Testing on my project has indicated it does not choose the one with the lowest RSSI. And you need to use BSSI if you want to use a specific AP.

John A

fly135 wrote:

vonnieda wrote:Does it use the lowest RSSI?

Testing on my project has indicated it does not choose the one with the lowest RSSI. And you need to use BSSI if you want to use a specific AP.

John A

Thanks John! We're starting to deal with more WiFi "mesh" networks and these seem to present as a bunch of APs with the same SSID but different BSSIDs. Right now we connect by SSID but if that's not connecting to the strongest signal it seems like we might need to start scanning and connect by BSSID.

Jason