Wi-Fi
Tap the Wi-Fi switch 
to toggle it On or Off. On connects
to a Wi-Fi network (from your list of available, detected networks).
Tap Wi-Fi to access the following settings
to manage your Wi-Fi connection(s):
Show Wi-Fi pop-up: Checkmark to be notified when a Wi-Fi network is in range when you launch an app.
WI-FI NETWORKS
The list of all of the Wi-Fi networks that are within access range. Tap one to access it.
Tap Search (at the bottom of the screen) to scan for available Wi-Fi networks.
Tap the Menu icon 
(at the upper-right corner of
the Wi-Fi menu screen) to access the following options.
Connect by WPS button: Allows you to connect to a secured Wi-Fi network with a WPS button.
Connect by WPS PIN: Allows you to connect to a secured Wi-Fi network with a WPS PIN.
Add network: Tap to enter a Wi-Fi name (SSID), choose the Security and enter the Password to manually add Wi-Fi networks.
Wi-Fi Direct: Allows direct connection with Wi-Fi devices without any access point.
Advanced Wi-Fi: Accesses the following advanced Wi-Fi settings.
NOTIFICATIONS
Wi-Fi notifications: Checkmark to notify if Wi-Fi networks are available nearby or when your device is connected to a Wi-Fi network.
Avoid unstable connections: Checkmark to disconnect the Wi-Fi router automatically when the Internet is unavailable.
USEFUL SETTINGS
Manage networks: Allows you to specify the order in which your Wi-Fi networks will be detected.
Sort list by: Sets how your Wi-Fi networks are listed. Choose Signal strength or Alphabetical order.
Keep Wi-Fi on when screen is off: Allows you to keep Wi-Fi on when the screen backlight is off (asleep). Choose from Yes, Only when plugged in, and No.
Allow Wi-Fi scanning: Checkmark to let Google's location service and other apps scan for networks, even when Wi-Fi is off.
Wi-Fi signal weak: Checkmark to disconnect Wi-Fi automatically when the Wi-Fi signal is weak.
Battery saving for Wi-Fi: Checkmark to minimize battery usage when Wi-Fi is on.
PERSONAL
Install certificates: Opens a screen to install certificates from storage.
INFORMATION
MAC address: Displays your phone's MAC address (which may need to be entered in the router to connect to some wireless networks with MAC filters).
IP address: Displays your phone's IP address.
Help: Displays Wi-Fi help information.