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[y s <yusuhail@xxxxxxxxx>]

I see the same bug on my Lenovo G50-45. Unloading and reloading the
module as in #56 gets me back online. However, its not a permanent
solution as it will again drop intermittently.

Kernel info:
 3.16.0-34-generic #45~14.04.1-Ubuntu SMP

According to http://askubuntu.com/questions/526214/how-to-set-
parameters-for-realtek-wifi-rtl8723 the culprit could be powersave.

Looking at the module parameters, it seems msi is 0 by default.

modinfo rtl8723be
filename:       /lib/modules/3.16.0-34-generic/kernel/drivers/net/wireless/rtlwifi/rtl8723be/rtl8723be.ko
firmware:       rtlwifi/rtl8723befw.bin
description:    Realtek 8723BE 802.11n PCI wireless
license:        GPL
author:         Realtek WlanFAE	<wlanfae@xxxxxxxxxxx>
author:         PageHe	<page_he@xxxxxxxxxxxxxx>
srcversion:     C94095C986767A931B924EF
alias:          pci:v000010ECd0000B723sv*sd*bc*sc*i*
depends:        rtlwifi,rtl8723-common,rtl_pci,btcoexist,mac80211
intree:         Y
vermagic:       3.16.0-34-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        4A:55:71:9E:5C:6C:61:54:BE:06:25:D0:48:83:AE:41:1B:76:41:AD
sig_hashalgo:   sha512
parm:           swlps:bool
parm:           swenc:using hardware crypto (default 0 [hardware])
 (bool)
parm:           ips:using no link power save (default 1 is open)
 (bool)
parm:           fwlps:using linked fw control power save (default 1 is open)
 (bool)
parm:           msi:Set to 1 to use MSI interrupts mode (default 0)
 (bool)
parm:           debug:Set debug level (0-5) (default 0) (int)

How can I help (by testing) to get this fixed? Is there a way for me to
look at logs or some module/device state to see if msi or power save
triggered the problem?

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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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