The AW100 does not have a wifi feature. If what you have is the AW110, the setup instruction is below.
First, you will need to download an application called WMU (Wireless Mobile Utility) to your Apple INC or Android smart device. The application can be downloaded free of charge from the application store on your smart device. You must also have a fully charge battery and an SD Card in the AW110.
(1)Press the menu button on the AW110.
(2) Highlight the wrench and press OK.
(3)Scroll down and highlight 'WiFi Options' and press OK.
(4)Scroll UP and select WiFi Network and press OK, then select 'ON' and press OK.
Note: If your battery is not fully charge, or if there is not a memory card in the camera, or if the usb cable is plug into the camera, or if an Eye-Fi card is in the camera, "WiFi Network' will be greyed out.
Once 'Wi-FI network' is activated on your camera, you will see an SSID(network name) display on the camera screen, and you will also see four square boxes going around on the camera screen.
5. Go to the settings menu on your Android phone/ Android tablet or IPhone/IPad and turn On it's Wi-Fi setting. After a few seconds, your phone, tablet, or Ipad will display a list of available wi-fi networks that you can connect to.
6.Tap on the network that is the same name as the SSID displayed on your camera screen.
Once your smart device is connected to the Camera network, you will see 'Negotiating' on the camera screen. At that point , you should open up the WMU application that you downloaded to your smart device.
If you still need assistance, you can contact Nikon Support from the link below for assistance.https://support.nikonusa.com