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[Bug 1445840] Re: 10ec:8176 10-20% packet loss on 802.11n 2.4GHz network

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** Description changed:

  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms latency pinging just the gateway
  192.168.1.1, with no network load on either the router or the WiFi
  chipset. The computer is ~4 feet away from a Verizon Jetpack MiFi 5510L,
  with no obstructions between them. Other clients (Ubuntu with different
  chipset, Windows) don't have this problem. The mainline 4.0 kernel works
  much better (0% packet loss, 1-150ms latency even with 24 Mbps load
  between the WiFi chipset and router).
+ 
+ With Vivid live environment, situation has improved, but still get
+ bursts of 2 packets with 300-450ms every 50-100 packets.
  
  Please backport all missing patches from:
  git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git && git log --grep=rtl8192ce --pretty=oneline --abbrev-commit
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1445840/+attachment/4379473/+files/commits.txt
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

** Description changed:

  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms latency pinging just the gateway
  192.168.1.1, with no network load on either the router or the WiFi
  chipset. The computer is ~4 feet away from a Verizon Jetpack MiFi 5510L,
  with no obstructions between them. Other clients (Ubuntu with different
  chipset, Windows) don't have this problem. The mainline 4.0 kernel works
  much better (0% packet loss, 1-150ms latency even with 24 Mbps load
  between the WiFi chipset and router).
  
  With Vivid live environment, situation has improved, but still get
- bursts of 2 packets with 300-450ms every 50-100 packets.
+ bursts of 2 packets with 300-450ms every 50-100 packets, with ~1% packet
+ loss.
  
  Please backport all missing patches from:
  git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git && git log --grep=rtl8192ce --pretty=oneline --abbrev-commit
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1445840/+attachment/4379473/+files/commits.txt
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

-- 
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https://bugs.launchpad.net/bugs/1445840

Title:
  10ec:8176 10-20% packet loss on 802.11n 2.4GHz network

Status in linux package in Ubuntu:
  Triaged

Bug description:
  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms latency pinging just the gateway
  192.168.1.1, with no network load on either the router or the WiFi
  chipset. The computer is ~4 feet away from a Verizon Jetpack MiFi
  5510L, with no obstructions between them. Other clients (Ubuntu with
  different chipset, Windows) don't have this problem. The mainline 4.0
  kernel works much better (0% packet loss, 1-150ms latency even with 24
  Mbps load between the WiFi chipset and router).

  With Vivid live environment, situation has improved, but still get
  bursts of 2 packets with 300-450ms every 50-100 packets, with ~1%
  packet loss.

  Please backport all missing patches from:
  git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git && git log --grep=rtl8192ce --pretty=oneline --abbrev-commit
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1445840/+attachment/4379473/+files/commits.txt

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

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