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Always a have problem when I install any version of ubuntu, but in this opportunity I can't solve the issue. My wifi connection down after 1 or 2 minutes in Ubuntu 17.04, it's so unstable, I already tried with:

apt install firmware-b43-installer

I have read so many articles in internet about the issue and nothing solve the problem, only change the time of issue ie the wifi get down in 2 minutes or in 10 minutes or in 1 more day but always get down, I do not know what doing. These are the tech features of my notebook when I execute these commands:

lspci -nn

Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]

and

lspci -knn | grep Net -A2

Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]

Subsystem: Lenovo RTL8821AE 802.11ac PCIe Wireless Network Adapter [17aa:a814]
Kernel driver in use: rtl8821ae
Kernel modules: rtl8821ae

This is my kernel info:

uname -mrs

Linux 4.10.0-20-generic x86_64

My notebook is a Lenovo 310-14IKB. I am not what more doing

Ricardo Gabriel
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1 Answers1

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It seems that there are drivers that can be built and installed to fix this problem.

See https://medium.com/@elmaxx/rtl8821ae-wifi-drivers-in-ubuntu-16-04-4c1286524afa

The essence of the solution is:

lspci | grep Wireless

The system replies with the following line

03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter

Then do:

sudo apt-get install linux-headers-generic build-essential git 
git clone http://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new
make
sudo make install

These commands build and install the drivers for rtl8192ce, rtl8192se, rtl8192de, rtl8188ee, rtl8192ee, rtl8723ae, rtl8723be, and rtl8821ae, all in one go. Just in case the system doesn’t load the appropriate kernel module, you can execute the following command from within your rtlwifi_new directory

sudo modprobe rtl8821ae

and reboot your system.

Note: I copied the above from the original article.

LifeBoy
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