Airport Extreme n-only ignored?

[cube]

I have always set my Airport Extreme to n-only, but today looking at the WiFi scanner it shows as b/g/n and a/n.

 

[Altemose]

Do note that N runs on both 2.4 and 5 GHz so setting one will not necessarily force clients to wireless N only as they could jump bands.

 

[cube]

It is selected as n only in both bands.

 

[Altemose]

It is selected as n only in both bands.

Do any of the clients still connect at a speed other than N?

 

[cube]

I don't have any bg-only devices, that's why it was set to n-only years ago.

But I never used the WiFi scanner before.

 

[Altemose]

I don't have any bg-only devices, that's why it was set to n-only years ago.

But I never used the WiFi scanner before.

I could be wrong but if I recall correctly, some scanners probe the hardware capabilities and the AirPorts software decides N only. For instance, it sees it is capable of B/G/N but when a client is connected it is forced to be N only by software.

 

[cube]

But the other networks in the vicinity are showing as n only.

 

[Altemose]

But the other networks in the vicinity are showing as n only.

Some routers disable the G hardware where as the AirPort uses software to control that.