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[vinay dwivedi <vinaydwivedi1988@xxxxxxxxx>]

Ok, so as I said in my previous comment, I have tested the performance
of wifi in Ubuntu 14.04 in 3-4 laptops in last 1 week.

After fresh installation, wifi keeps on dropping. Then I applied tlue's workaround on all of them which was:
echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf

Now after doing this, the wifi stabilizes but after long usage (2-4
hours continuously)  it drops for 5-20 seconds and then either comes
back automatically or needs a reconnect (Reboot is not required to
reconnect in this case).

So after digging about incompatibility related to msi in rtl8723be, I added one extra parameter in above command:
echo "options rtl8723be fwlps=N ips=N msi=1" | sudo tee /etc/modprobe.d/rtl8723be.conf

After using for 4-5 hours I didn't see a drop. Still I am keeping
fingers crossed.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1297286

Title:
  Wireless connection keeps disconnecting

Status in network-manager package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  I have a wireless access point that is at most 2 meters away. It keeps
  disconnecting with no apparent reason. I read somewhere that setting a
  static ip should help with the problem, but the problem seems pretty
  persistent.

  Thanks.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: network-manager 0.9.8.8-0ubuntu5
  ProcVersionSignature: Ubuntu 3.13.0-19.39-lowlatency 3.13.6
  Uname: Linux 3.13.0-19-lowlatency x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Mar 25 15:20:15 2014
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2014-03-20 (5 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140319)
  IpRoute:
   default via 192.168.1.1 dev wlan0  proto static 
   192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.245  metric 9
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2014-03-23T16:50:07.398742
  nmcli-con:
   NAME                      UUID                                   TYPE              TIMESTAMP    TIMESTAMP-REAL                     AUTOCONNECT   READONLY   DBUS-PATH                                 
   NETGEAR                   74dc69be-e44f-4e15-a614-6c284d83d16b   802-11-wireless   1395737193   Tue 25 Mar 2014 10:46:33 AM EET    yes           no         /org/freedesktop/NetworkManager/Settings/2
   Wired connection 1        7ac79166-e72e-455b-ad9e-34574ee5d94e   802-3-ethernet    1395571025   Sun 23 Mar 2014 12:37:05 PM EET    yes           no         /org/freedesktop/NetworkManager/Settings/1
   Egy Cloud                 05f6b118-d332-4196-a7b0-810bba89bbf7   802-11-wireless   1395753542   Tue 25 Mar 2014 03:19:02 PM EET    yes           no         /org/freedesktop/NetworkManager/Settings/0
   AndroidAP                 46037856-999f-4b3b-878d-13243f4ae958   802-11-wireless   1395592043   Sun 23 Mar 2014 06:27:23 PM EET    yes           no         /org/freedesktop/NetworkManager/Settings/3
  nmcli-dev:
   DEVICE     TYPE              STATE         DBUS-PATH                                  
   wlan0      802-11-wireless   connected     /org/freedesktop/NetworkManager/Devices/1  
   eth0       802-3-ethernet    unavailable   /org/freedesktop/NetworkManager/Devices/0
  nmcli-nm:
   RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   WIFI       WWAN-HARDWARE   WWAN      
   running         0.9.8.8    connected       enabled       enabled         enabled    enabled         disabled

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