1. First confirm whether the wireless switch is turned on. You can confirm it by checking the wireless light or by pressing FN+F8: if the prompt "wireless communication is invalid, please turn on the wireless communication switch" is prompted, the wireless switch is not turned on. 2. Turn on the wireless switch: FN+F8, adjust it to Wi Fi. 3. If the Internet is still unavailable, right click on the wireless network connection - select Properties. If Properties View Full Text