Ubuntu – RTL8723be: poor and unstable wireless in Ubuntu (from 14.04 to 15.04)


I have a Lenovo G40-70 laptop, which comes with RTL8723be driver.

I'm using Ubuntu 14.04 LTS (with Kernel 3.16.0-38-generic), but this bug also occurs in 14.10 and 15.04.

Even with options rtl8723be fwlps=0 ips=0, the problem is not fixed yet. Wireless is unstable, lots of websites keeps loading forever and Ping command frequently shows data loss. It's very annoying. 🙁

BIOS version is the latest.

Blacklisting ideapad_laptop also doesn't work.

Sorry my english and thank you!

Best Answer

You tried an old solution. You need to install another driver. Run in terminal

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

Then reboot.

You also can remove that file with options rtl8723be fwlps=0 ips=0.

Note You will have to re-install it after each kernel upgrade.

New option:

You can now use a ppa instead of manual compiling:

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