Standard  Channel : Specify   the   effective 
channel   (from   1   to   13\Auto)   of   the   wireless 
network.
 Extension   Channel : To   increase   data 
throughput   of   wireless   network,   the   extension 
channel range is used in 11n mode.
 Channel  Bandwidth : Select   the   channel 
bandwidth to improve the wireless performance. 
When the network has 11b/g and 11n clients, you 
can select the 40M; when it is an 11n network, 
select 20/40M to improve its throughput.
7.2 Wireless Security Setting
It   is   used   to   configure   the   AP   network’s   security 
setting.   Here   presents   the   common   six   (ten   in   all) 
encryption   methods,   including   WPA-personal,   WPA2-
personal,   Mixed   WEP,   WPA-enterprise,   WPA2-
enterprise, etc. 
7.2.1 WPA-Personal
WPA (Wi-Fi Protected Access), a Wi-Fi standard, is a 
more recent wireless encryption scheme, designed to 
improve the security features of WEP. It applies more 
powerful   encryption   types   (such   as   TKIP   [Temporal 
Key Integrity Protocol] or AES [Advanced Encryption 
Standard]) and can change the keys dynamically on 
every authorized wireless device.