Reference
Your tablet device cannot connect to a Wi-Fi network.
- Make sure the Wi-Fi function is turned on.
-
Tap [ Apps & Widgets] - [ Settings] - [Wi-Fi] in that order, and then slide the [Wi-Fi] switch to the [ON] position.
- Make sure there are no obstacles blocking the signal between devices, and the distance between devices is not too far [Details].
- A connection may be made available by changing the channel settings of your access point.
- Make sure the [Network SSID] and the [Security] of your access point are set correctly.