It’s been a few years since I’ve played around with this so I’m not sure if times have changed.
When using AR7921 chipset (Alfa AWUS036NHA) on Ubuntu 20.04 I can see many networks using the following commands
airodump-ng start wlx00c0ca84d0f8 airodump-ng mon0
I’ve noticed all the VMxxxxx networks have a very low beacon count, perhaps 1 every 20 seconds (compared to e.g BT Broadband APs which seem to have a “normal” beacon count of several per second. The VMxxxx networks are Virgin Media home broadband networks- including the connection I’m legitimately using that is 6 feet away from me.
The rest of the networks have normal looking beacon counts. Has something changed/new technology in place that reduces the beacon count over the past few years or is the issue something else?
I can use the following command for half an hour on my VMxxxx network and find nothing connecting to it, even though I’ve got 4 different devices here using that access point (disconnected and reconnected them several times).
airodump-ng -d [APMACHERE] -c 6 mon0
Sample output after 5 minutes
CH 6 ][ Elapsed: 5 mins ][ 2020-06-13 16:53 ][ fixed channel mon0: -1 BSSID PWR RXQ Beacons #Data, #/s CH MB ENC CIPHER AUTH ESSID xx:xx:xx:xx:xx:xx 0 0 6 0 0 6 54e. WPA2 CCMP PSK VMxxxxxxx BSSID STATION PWR Rate Lost Frames Probe
It is my understanding there should be a significant amount more beacons, especially from an AP in the same room.
Any idea what the problem might be?