Start by checking the following:
- Verify that the Wi-Fi is turned on. Swipe down from the top of the screen once using two fingers, or twice using one finger >Tap
> Wi-Fi. - Try turning airplane mode on and off. Swipe down from the top of the screen once using two fingers, or twice using one finger. >Tap > Internet & network. Turn the Airplane mode switch on and off.
- Check that your password for the Wi-Fi network is correct.
- Turn off your device, then turn it on again.
- Delete the information used to connect to the Wi-Fi network, then try to connect again. Swipe down from the top of the screen once using two fingers, or twice using one finger. It makes more sense. >Tap > Wi-Fi. Tap a network, then tap Forget.
- Verify if mobile hotspot mode is turned off. If mobile hotspot mode is on, your device can’t connect to a Wi-Fi network. Swipe down from the top of the screen once using two fingers, or twice using one finger.>Tap > More > Tethering & Mobile Hotspot.
- Unplug your modem or router for 15 seconds, then plug it in again.
- Try connecting your device to another Wi-Fi network at another location. If you can connect to another Wi-Fi network, the problem might be specific to the Wi-Fi network at the original location.
Try more advanced troubleshooting options:
- Check if the time on your device is correct and synchronized with the network time. If the time on your device is not sync with network time, your device may not connect to Wi-Fi network (for example, connecting to a network might require that you have a certificate on your device, and the certificate has an expiration date).
- If you use your device for business, your organization might prevent connections to certain wireless access points. For more information, contact your administrator for help.
If you still can’t connect, you can contact your Internet service provider for help.