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[rikonen <1320070@xxxxxxxxxxxxxxxxxx>]

I confirm that the problem dissappeared with #52 kernel, the WiFi works
now fine on Lenovo G50-70.

$ uname -a
Linux Lenovo 3.13.0-29-generic #52-Ubuntu SMP Wed May 28 12:42:47 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
$ dmesg | grep rtl
[   10.182680] rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
[   11.050940] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[   11.051205] rtlwifi: wireless switch is on

Many thanks for all supported persons!

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https://bugs.launchpad.net/bugs/1320070

Title:
  Realtek Wifi card RTL8723BE drops connection with MSI enabled

Status in “linux” package in Ubuntu:
  In Progress
Status in “linux” source package in Trusty:
  Fix Committed
Status in “linux” source package in Utopic:
  In Progress

Bug description:
  As my testing result with ThinkPad E540 and other users' report[1],
  RTL8723BE drops connection with MSI enabled, need to backport
  329d6e299f92a591acb3a80f6d597a5f9dce7e6d "rtlwifi: rtl8723be: disable
  MSI interrupts mode"

  [1] https://bugs.launchpad.net/bugs/1240940

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