I installed Ubuntu as my main OS recently. It's very nice. Nevertheless I have some problems.
When I turned the computer on, the wifi connection worked perfectly. But after a few minutes, problems appeared. I was still connected to the wifi but with no Internet connection. And after a while, the connection with my router was lost.
I had been rebooting my laptop several times, but with the same results.
lspci -knn | grep Net -A3
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]
Subsystem: XAVi Technologies Corp. RTL8821AE 802.11ac PCIe Wireless Network Adapter [1b9a:2482]
Kernel driver in use: rtl8821ae
Kernel modules: rtl8821ae
It's an Asus FX555UA.
