You first need to figure out if the problem is with your Lenovo Device or the Wi-Fi network:
Device/Machine problems: Try connecting to the Wi-Fi network with another device, like a laptop computer or friend's phone. If any other devices can connect to and use the wireless network, the problem is most likely specific to your device.
Network/Router problems: Check to see if your device can connect to a Wi-Fi network at another location, like a friend's house or a public network. If it can, the problem is most likely specific to the Wi-Fi network.
From here you can follow Lenovo’s Wi-Fi troubleshooting page here:
Make sure Wi-Fi is turned on your device How to enable and disable Wi-Fi
Make sure flight mode is turned off
Make sure your selecting the correct wireless name in range and using the correct network password to connect, Wireless networks with low signals will show connected but you will not be able to browse the internet
Check your router and modern, Make sure the lights are as mentioned in the user guide of your service provider
Please ensure your inputting the write password key. At times if you enter the wrong password it will show connected but you will not be able to browse the internet
First figure out if the problem is with your Lenovo Device or the Wi-Fi network:
Device/Machine problems: Try connecting to the Wi-Fi network with another device, like a laptop computer or friend's phone. If any other devices can connect to and use the wireless network, the problem is most likely specific to your device.
Network/Router problems: Check to see if your device can connect to a Wi-Fi network at another location, like a friend's house or a public network. If it can, the problem is most likely specific to the Wi-Fi network.
