A network with a key is showing up this way when running
iw wlan0 scan on an OpenWRT device:
BSS 00:26:50:41:c7:01(on wlan0) TSF: 20161559489 usec (0d, 05:36:01) freq: 2462 beacon interval: 100 TUs capability: ESS (0x0431) signal: -25.00 dBm last seen: 30 ms ago Information elements from Probe Response frame: SSID: BELL405
I'm debugging this remotely with a non-technical user and don't know exactly what form of security is present, only that the network has a key that is used when connecting other devices. I might have written this off as user confusion if this wasn't the second case of a user swearing their network needs a key but the scan looking similar.
Am I missing something here I could use to detect that a key is required? I've seen
Privacy on every other network with a key.