Public bug reported:
Computer is suffering unusually high packet loss (41%+) with 802.11n through a
Verizon Jetpack MiFi 5510L (latest router firmware). I tried turning off WiFi
power management via sudo iwconfig wlan1 power off (I found it enabled), but no
change. Other WiFi hardware (cell phones, etc.), and other/same operating
systems don't have this problem. This occurs with the release kernel in Utopic,
and well as latest:
uname -a
Linux macbookpro 3.16.0-33-generic #44-Ubuntu SMP Thu Mar 12 12:19:35 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
apt-cache policy bcmwl-kernel-source
bcmwl-kernel-source:
Installed: 6.30.223.248+bdcom-0ubuntu1
Candidate: 6.30.223.248+bdcom-0ubuntu1
Version table:
*** 6.30.223.248+bdcom-0ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ utopic/restricted amd64
Packages
100 /var/lib/dpkg/status
lspci -vvnn | grep -A 9 Network
02:00.0 Network controller [0280]: Broadcom Corporation BCM4331 802.11a/b/g/n
[14e4:4331] (rev 02)
Subsystem: Apple Inc. AirPort Extreme [106b:00f5]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 256 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at a0600000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: wl
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-33.44-generic 3.16.7-ckt7
Uname: Linux 3.16.0-33-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Apr 1 23:53:47 2015
InstallationDate: Installed on 2015-04-01 (0 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: bcmwl (Ubuntu)
Importance: High
Status: Triaged
** Tags: amd64 apport-bug latest-bios latest-firmware utopic
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https://bugs.launchpad.net/bugs/1439503
Title:
14e4:4331 [MacBookPro9,2] 41% packet loss
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