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[Arnaud LE CAM <arnaud.lecam@xxxxxxxx>]

Hi,
Bios-updating (Bios version : F.36 / Bios release date : 12/18/2014) didn't change anything.

But I had a look on dmesg's outputs, and it gives two informations :

1) dmesg's output is always the same on reconnection

 wlan0: deauthenticated from f4:ca:e5:f0:33:98 (Reason: 2=PREV_AUTH_NOT_VALID)
 cfg80211: Calling CRDA to update world regulatory domain
 cfg80211: World regulatory domain updated:
 cfg80211:  DFS Master region: unset
 cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
 cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
 cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
 cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
 cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
 cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
 wlan0: authenticate with f4:ca:e5:f0:33:98
 wlan0: send auth to f4:ca:e5:f0:33:98 (try 1/3)
 wlan0: authenticated
 wlan0: associate with f4:ca:e5:f0:33:98 (try 1/3)
 wlan0: RX AssocResp from f4:ca:e5:f0:33:98 (capab=0x411 status=0 aid=2)
 wlan0: associated

2) those "groups of dmesgs" appear periodically (time between two reconnections, in fact) :
600 sec
1200 sec
600 sec
600 sec
1200 sec

I hope it will be useful...

Best regards,

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1459367

Title:
  Realtek RTL8723BE wireless card drops connection in Linux kernel
  3.19.0-18

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Hi,
  I loose my connection randomly (HP laptop, model 15-r207nf) with Realtek RTL8723BE wireless card.
  Linux 3.19.0-18-generic on Xubuntu 15.04

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-18-generic 3.19.0-18.18
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0p:   arnaud     1415 F...m pulseaudio
   /dev/snd/controlC0:  arnaud     1409 F.... panel-17-mixer
                        arnaud     1415 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Wed May 27 19:46:19 2015
  HibernationDevice: RESUME=UUID=677c116e-29ca-4442-a248-9302170fbb6b
  InstallationDate: Installed on 2015-04-18 (38 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
  MachineType: Hewlett-Packard HP 15 Notebook PC
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic.efi.signed root=UUID=3c2695c5-1341-4096-966f-ad24d315f451 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-18-generic N/A
   linux-backports-modules-3.19.0-18-generic  N/A
   linux-firmware                             1.143.1
  SourcePackage: linux
  UdevLog: Error: [Errno 2] Aucun fichier ou dossier de ce type: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/28/2014
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.32
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 2213
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 57.47
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.32:bd10/28/2014:svnHewlett-Packard:pnHP15NotebookPC:pvr0974120000405F00000620180:rvnHewlett-Packard:rn2213:rvr57.47:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP 15 Notebook PC
  dmi.product.version: 0974120000405F00000620180
  dmi.sys.vendor: Hewlett-Packard

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