24D-Link GO-RT-N300 User Manual
Section 3 - Conguration
Wireless Basics
Wireless
Enable SSID broadcast if you want the router to transmit 
its SSID publicly so other wireless devices can discover it.
Enable wireless isolation to prevent connected wireless 
devices from  connecting  to other  wireless devices  that 
are also connected to the router.
Enter the SSID name of the router.
Use the dropdown menu to specify the wireless mode.
Use the dropdown menu to select the wireless channel.
Use the dropdown menu to select the channel bandwidth.
If  you selected  the 802.11n,  802.11 b/g, or  802.11 b/g/n 
wireless  modes,  the  available  options  are 20 MHz  and 
20/40MHz. For the others, 20MHz is the only option.
Select the  maximum transmission rate for the  wireless 
network.
Select a wireless security encryption option. You can also 
choose to not use one by selecting None, but this is not 
recommended.
Enable SSID 
Broadcast: