I´m not a computer professional, more an amateur. I have Ubuntu, and I dont have WiFi connecton. Somehow i figured out I need a Driver, but i searched all over the internet an i just can not find anything that works. I connected with my ethernet cable and I tried to search on additional drivers but there is nothing. I have a Lenovo y700 with AMD processor and graphics.
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]
Best regards
lspci -nnk | grep 0280
Welcome to askubuntu. – chili555 Oct 14 '16 at 15:51