The exact method to disable the broadcast of your SSID will vary depending on your router. Most routers have an option directly within the settings which will allow you the option to mask the broadcast of your SSID.
It wireless network settings choose "do not broadcast SSID", activate security for wireless networks. It's better for you if use WPA at least.
SSID
Hiding or changing the broadcast of your SSID is a security measure. An SSID that is not displayed prevents outside users from recognizing your network. It can also prevent any attempts to hijack your network.
The ssid is used for identifying you wireless network so you can see which network is your and which is your neighbors
An SSID is any name you want to give to your wireless network router (to identify it) up to 32 characters long. Frequestly the SSID has a default that is supplied by the router manufacturer. it is important ,not to broadcast ur ssid ,also change ur ssid name.
A Unicast Broadcast broadcasts the SSID service set identifier
It's recommended to turn off ssid broadcast.
Ssid broadcast
Disabling the SSID Broadcast.
firewall disable
overlapping channel,broadcast SSID
SSID does not have to be different but the password must. But if you have multiple networks with same name but with different passwords it will take you couple attempts to connect to a correct one.