For issues that may occur with your tablet's Wi-Fi networks, follow these steps:
Check that this icon is next to the battery and time icon at the top right of the screen.
If it does not appear, the Wi-Fi signal is disabled. To activate it:
Select "Settings" from the desktop or app drawer. Then select "WLAN". The screen displays "No". Move the switch to the right, it says "Yes" and that's it! From this moment, the available WiFi networks are displayed.
To connect to one of the available Wi-Fi networks:
Select the WiFi network you wish to connect to and enter the password (note the use of upper and lower case letters as network passwords take this into account).
If everything went well, "Connection established" is displayed and the connection has been established successfully.
Note: Wi-Fi signal may be on, but no network is displayed. If this happens, slide the Wi-Fi switch to No and then back to Yes to turn it back on. If none of the above works, turn the tablet off and on again.