Comment 0 for bug 1493143

I obtained a lenovo y50-70 a few weeks ago, and installed ubuntu 14.04.3 LTS on it (dual boot with windows 8 that came pre-installed).

$ lsb_release -rd
Description: Ubuntu 14.04.3 LTS
Release: 14.04

I have not been able to get the rtl8723be wifi adapter to work yet.

If it will connect to a wifi network at all (which is rare), it will be choppy (10% to 50% packet loss on a ping to the default gateway) and usually disconnect after a few minutes.

The internet suggests a few work-arounds:

- run with fwlps=0 ips=0 as options to the rtl8723be module (eg. http://askubuntu.com/questions/590414/wifi-problems-with-rtl8723be-in-ubuntu-14-04)
- install an alternative driver (eg. http://askubuntu.com/questions/590414/wifi-problems-with-rtl8723be-in-ubuntu-14-04)
http://paste.ubuntu.com/1230961

However, none of those suggested worked for me.

I have tried downgrading the kernel down to 3.13.0-62, and various kernels in between, but none of that helped either.

Output of the wireless-info script here: http://paste.ubuntu.com/12309610/

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-extra-3.19.0-26-generic 3.19.0-26.28~14.04.1
ProcVersionSignature: Ubuntu 3.19.0-26.28~14.04.1-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.12
Architecture: amd64
Date: Mon Sep 7 21:18:25 2015
InstallationDate: Installed on 2015-08-21 (17 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linux-lts-vivid
UpgradeStatus: No upgrade log present (probably fresh install)