I've been using my RPi for a while now with an Edimax EW-7811UN nano adapter.
The adapter works fine, if slowly, on 802.11g (2.4GHz) mode, but it is a 802.11n capable adapter. Running "iwconfig" confirms that Wheezy recognises the 802.11n capabilities, but insists on connecting to the router's 2.4G connection.
I have tried to "hash out" the 2.4G SSID reference in wpa_supplicant to leave the 5G (802.11n) SSID as the only remaining access point, but it refuses to establish a connection. Interestingly, wavemon also fails to see any 5G connections when in scan mode.
Code: Select all
wlan0 IEEE 802.11bgn ESSID:"xxxxxxxxxxxxx" Nickname:"<WIFI@REALTEK>" Mode:Managed Frequency:2.412 GHz Access Point: xx:xx:xx:xx:xx:xx Bit Rate:72.2 Mb/s Sensitivity:0/0 Retry:off RTS thr:off Fragment thr:off Power Management:off Link Quality=94/100 Signal level=60/100 Noise level=0/100 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
I need the extra range afforded by 802.11n, as the 802.11g signal is highly variable (the above example from iwconfig is not representative of the usual signal/quality levels).