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[leafcutter <shaziajuna@xxxxxxxxxx>]

I agree with the comments in #58. I also have a Lenovo M30-70 I installed Ubuntu 14.10.  I tried lots of ideas suggested in the forums on google . The kernel updates made things worse, so I would not recommend it. I had to reinstall Ubuntu from scratch, that was not a problem for me as I have been setting my new laptop.  
I found that the workaround in #55 pretty effective however, the wifi connection dropped and in some cases i would not be able to reconnect until the laptop was rebooted.  The connection would drop randomly sometimes after 2 hours and sometimes 10 minutes, only rebooting the system allowed it to reconnect. Then I stumbled upon a post in the Opensuse forums which mentioned that deactivating the bluetooth as a a default setting may improve the stability of the connection.  It has worked for me. My recommendation would be to change the settings as suggested in #55 and if you are not bothered about bluetooth turn it off. I monitored the connection in the terminal (i used wavemon) for various solutions this gave me the best result. Without turning off bluetooth gave me a max of 2 hours of wifi connection. Whilst the connection has been stable and not dropped for 19 hours if I applied #55 and deactivating the bluetooth.  I hope this might be of help.

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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:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Utopic:
  Fix Released

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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