Wifi dropping on Lenovo G50-70

Question

I'm having problems with my WiFi on a Lenovo G50-70 which uses the Realtek RTL8723BE chip. After a certain time it drops. I then have to reboot the whole system to get the Wifi functioning again.

Noteworthy is that it happens every time in a Skype conference after like 27 minutes.

I found some bug reports on launchpad and tried several suggestions. I upgraded the kernel to the latest version 3.18. Also I added the following options in /etc/modeprobe.d/rtl8723be.conf:

options rtl8723be fwlps=0 swlps=0 ips=0

How do I get rid of all the drops?

Solution 1

One thing I think you are missing is that you haven't got the latest driver. I don't believe it is yet included in the kernel you installed. I'll post my complete solution below in case others are looking for this.

I had been struggling with this issue for months. Here's what finally worked for me and seems to be working for others on 14.04:

Download the latest driver (you might have to install git first)

git clone http://github.com/lwfinger/rtlwifi_new.git

Change into the new directory you just created

cd rtlwifi_new

Compile and install the new driver

make
sudo make install

Edit the settings for the driver

echo "options rtl8723be fwlps=0 swlps=0" | sudo tee /etc/modprobe.d/rtl8723be.conf

It's probably a good idea to take a look at that file to make sure that worked. Some people say the "swlps=0" part of the command above is unnecessary. I'm not sure but it doesn't seem to be hurting anything.

Reboot.

The next time your system updates the kernel, you may have to do this part again:

cd rtlwifi_new
make
sudo make install

I'd be curious to hear if others have tried this on releases other than 14.04 with success.

Good luck!

Solution 2

try this :

echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf

sudo modprobe -rv rtl8723be
sudo modprobe -v rtl8723be

After the reboot the drops should never happen again.

Comments

[mchid]

Have you tried toggling the wifi switch or restarting network-manager sudo service network-manager restart? It doesn't fix your problem but might be easier than rebooting in the meantime.

[Harit Vishwakarma]

I am facing same problem with ubuntu 14.04 and lenevo Z50. I don't see rtl8723be.conf file in /etc/moprobe.d .