Unplug the router from the power outlet and plug it back in after a few minutes. After you plug it back in, you should be able to connect to the Wi-Fi network.
You won't be able to connect to Wi-Fi, if you don't enter the correct password. Make sure that the password is entered in a correct way, as passwords are case-sensitive (e.g water is not the same as WateR).
Maybe you can't connect to a Wi-Fi network because the router is turned off. All you need to do is to turn on the router and you should be able to connect to it.
Maybe your device doesn't connect to the Wi-Fi network, because it's not within the router's range. Try moving the device to the router as closely as possible and you should be able to connect to the network.
Maybe the problem is not in your device, but in the router, i.e. the way it's configured. In this case, try resetting the router and then reconfigure it again, i.e. start from scratch. On most routers, there is a small reset button on the back side. Once you press it (on some routers you need to use a toothpick to press it), you need to access the router (see the don't know how to access my router guide) and select a network name and a password.
Maybe your device can't connect to the Wi-Fi network because the router's Wi-Fi signal is poor. Devices require a good Wi-Fi signal in order to be able to connect to a Wi-Fi network.
Check out the poor wi-fi signal guide to learn what to do in order to improve the Wi-Fi signal.
If the MAC filter is enabled on your router, only devices whose MAC address is entered in the router's list can connect to the router and browse the Internet.
In order to update the MAC filter list, you need to log in to the router's user interface by entering the username and password.
If you don’t receive the email in the next 2 minutes please check your junk folder, and add [email protected] to your safe sender list.