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I have continuous problems of network dropping connections on wifi with ubuntu 16.04, I have an ASUS R510J, this is my network card:

##### lspci #############################

03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]
        Subsystem: AzureWave RTL8821AE 802.11ac PCIe Wireless Network Adapter [1a3b:2161]
        Kernel driver in use: rtl8821ae

04:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 12)
        Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1043:200f]
        Kernel driver in use: r8169

sudo service network-manager restart doesnt's help, as I never regain internet connection after it drops, and I have to restart the PC. On Ethernet cable I have no problem.

What do you think is the issue? drivers?

thank you

Thiago Rider Augusto
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perepepe
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2 Answers2

2

I had the same issue,My network card is RTL8821AE 802.11ac PCIe Wireless Network Adapter.I did the following steps to get it working:

sudo apt-get install git build-essential
git clone https://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new
make
sudo make install

Your WiFi will now work fine but you will need to re-install it after each kernel upgrade. Or this code might work:

sudo dkms add ./rtlwifi_new
pomsky
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Praveen Ojha
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Install this driver from a PPA

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt update
sudo apt install rtlwifi-new-dkms

It is a better driver that should support your adapter.

Pilot6
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    unfournately, I tried this solution for a few weeks and the problem persists. I assume it is just a matter of drivers – perepepe Aug 26 '16 at 13:23
  • @perepepe, see my answer here https://askubuntu.com/a/917778/127308 on how to build the latest rtl wifi driver to solve this. – LifeBoy May 30 '18 at 11:04