Ubuntu
linux package

  1. Bug #1451233
  2. Comment #0

Comment 0 for bug 1451233

Revision history for this message
Paweł Kowalik (pkowalik) wrote : Realtek RTL8723BE drops connection until reboot

There are a lot of bugs submitted about this module, but it seems like none of them provides any useful informations or workarounds.

I have a Lenovo B5400 laptop with RTL8723BE wireless module. The internet connection constantly getting lost after a random duration (usually after 20-30 minutes). The NetworkManager applet does not recognize it (still looks like i have a connection), but when I try do disconnect and connect again, there is only one useful information I can find in dmesg:
"wlan0: deauthenticating from [ap mac address] by local choice (Reason: 3=DEAUTH_LEAVING)"
Reinserting the driver (modprobe -r rtl8723be and modprobe rtl8723) used to be my only workaround, but it does not work anymore and now I have to reboot.

I am pretty sure this bug affects many people as we can see here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442908
or here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240940

Also I have found an interesting response from lwfinger's github repository about similar issue:
"I have no idea what Ubuntu is doing with their kernels and why it is now failing; however, some of Ubuntu's practices have caused me to stop supporting anyone that uses Ubuntu. Sorry, but they were wasting too much of my time. As a volunteer, I could see no reason to continue beating my head against the wall. Switch back to the older version of Ubintu's kernel."
https://github.com/lwfinger/rtlwifi_new/issues/42#issuecomment-93726319

Feel free to ask me for any additonal informations if needed. I would really like to finally see this driver working properly.

OS: Linux 3.16.0-36-generic #48~14.04.1-Ubuntu SMP Wed Apr 15 13:11:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux (fully updated for this moment)

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-36-generic 3.16.0-36.48~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-36.48~14.04.1-generic 3.16.7-ckt9
Uname: Linux 3.16.0-36-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
CurrentDesktop: Unity
Date: Sun May 3 20:00:40 2015
InstallationDate: Installed on 2015-05-03 (0 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)