iwl4965 works imposible slow because it tries to use 11n on non compatible rooter

[Baditaflorin]

The wifi was working ultra slow, with disconets and other, until i tested this soluttion
Ubuntu 12.04 Clean Install

http://ubuntuforums.org/showpost.php?p=11350040&postcount=21

I don`t know what i should post, so i post random output of diferent commands

 iwconfig wlan0
wlan0 IEEE 802.11abgn ESSID:"etajul 2"
          Mode:Managed Frequency:2.462 GHz Access Point: 14:D6:4D:79:AF:BA
          Bit Rate=58.5 Mb/s Tx-Power=15 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:off
          Link Quality=46/70 Signal level=-64 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:3653 Invalid misc:66 Missed beacon:0

badita@vivi:~$ dmesg | egrep 'iwl|firm|radio|switch|wlan0'
[43134.724090] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[43316.395591] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[43316.396727] wlan0: authenticated
[43316.396946] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[43316.408085] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[43316.408092] wlan0: associated
[43330.124023] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[44329.320579] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[44329.325404] wlan0: authenticated
[44329.325583] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[44329.335566] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[44329.335575] wlan0: associated
[44331.656109] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[44568.330405] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[44568.331926] wlan0: authenticated
[44568.332532] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[44568.341654] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[44568.341665] wlan0: associated
[44571.409815] wlan0: deauthenticated from 14:d6:4d:79:af:ba (Reason: 2)
[44573.651879] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[44573.653045] wlan0: authenticated
[44573.653617] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[44573.657726] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[44573.657736] wlan0: associated
[44584.806321] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[44931.129851] wlan0: deauthenticated from 14:d6:4d:79:af:ba (Reason: 2)
[44933.504674] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[44933.505991] wlan0: authenticated
[44933.506405] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[44933.509394] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[44933.509399] wlan0: associated
[44952.474912] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[45687.244037] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[45687.246049] wlan0: authenticated
[45687.246202] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[45687.248258] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[45687.248261] wlan0: associated
[45689.596049] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[46031.516797] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46031.625512] wlan0: authenticated
[46031.626010] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46031.824055] wlan0: associate with 14:d6:4d:79:af:ba (try 2)
[46031.971640] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46031.971645] wlan0: associated
[46078.316634] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46078.319511] wlan0: authenticated
[46078.319832] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46078.330242] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46078.330250] wlan0: associated
[46082.426577] wlan0: deauthenticated from 14:d6:4d:79:af:ba (Reason: 2)
[46084.708407] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46084.709517] wlan0: authenticated
[46084.709649] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46084.725567] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46084.725571] wlan0: associated
[46104.326590] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46104.331014] wlan0: authenticated
[46104.332912] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46104.338830] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46104.338840] wlan0: associated
[46151.464455] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[46365.499736] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46365.696032] wlan0: authenticate with 14:d6:4d:79:af:ba (try 2)
[46365.754663] wlan0: authenticated
[46365.755006] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46365.766612] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46365.766617] wlan0: associated
[46379.932040] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[46421.309394] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46421.401508] wlan0: authenticated
[46421.402168] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46421.600092] wlan0: associate with 14:d6:4d:79:af:ba (try 2)
[46421.680259] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46421.680263] wlan0: associated
[46424.641573] wlan0: deauthenticated from 14:d6:4d:79:af:ba (Reason: 2)
[46426.837911] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46427.005758] wlan0: authenticated
[46427.006106] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46427.204061] wlan0: associate with 14:d6:4d:79:af:ba (try 2)
[46427.268022] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46427.268032] wlan0: associated
[46464.640046] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[46731.241153] wlan0: deauthenticated from 14:d6:4d:79:af:ba (Reason: 6)
[46733.495938] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[46733.497397] wlan0: authenticated
[46733.497796] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[46733.499966] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[46733.499976] wlan0: associated
[46743.400148] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[46758.865378] iwl4965 0000:07:00.0: Aggregation not enabled for tid 6 because load = 1
[47535.854451] iwl4965 0000:07:00.0: Aggregation not enabled for tid 6 because load = 0
[47581.773406] wlan0: deauthenticating from 14:d6:4d:79:af:ba by local choice (reason=3)
[47597.209574] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[47597.543654] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[47607.212311] wlan0: authenticate with 14:d6:4d:79:af:ba (try 1)
[47607.214956] wlan0: authenticated
[47607.223556] wlan0: associate with 14:d6:4d:79:af:ba (try 1)
[47607.225696] wlan0: RX ReassocResp from 14:d6:4d:79:af:ba (capab=0xc11 status=0 aid=1)
[47607.225700] wlan0: associated
[47607.266353] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[47614.926199] iwl4965 0000:07:00.0: iwl4965_tx_agg_start on ra = 14:d6:4d:79:af:ba tid = 0
[47619.016183] wlan0: no IPv6 routers present
[48285.362513] iwl4965 0000:07:00.0: Aggregation not enabled for tid 6 because load = 0
badita@vivi:~$

badita@vivi:~$ iperf -c kjawhtpc -r
error: No address associated with hostname

badita@vivi:~$ sudo lshw -C network
sudo: unable to resolve host vivi
  *-network
       description: Ethernet interface
       product: 88E8055 PCI-E Gigabit Ethernet Controller
       vendor: Marvell Technology Group Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 13
       serial: 00:1f:c6:18:2e:18
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 firmware=N/A latency=0 link=no multicast=yes port=twisted pair
       resources: irq:47 memory:fdffc000-fdffffff ioport:a800(size=256) memory:fdfc0000-fdfdffff
  *-network
       description: Wireless interface
       product: PRO/Wireless 4965 AG or AGN [Kedron] Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wlan0
       version: 61
       serial: 00:1d:e0:49:fb:63
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwl4965 driverversion=3.2.0-24-generic-pae firmware=228.61.2.24 ip=192.168.0.101 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:48 memory:fe9fe000-fe9fffff

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Niklas Edmundsson (niklas-edmundsson)]

iwl4965 is a kernel module

[Niklas Edmundsson (niklas-edmundsson)]

I have stability/connectivity issues on University campuses, most of them using high-end Cisco wireless equipment, when I have 11n enabled on Ubuntu 12.04LTS.

This was not a problem with 10.04LTS, so this is a regression.

[Niklas Edmundsson (niklas-edmundsson)]

Is this perhaps a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/836250 ??

[Baditaflorin (baditaflorin)]

Any Updates ?

In 13.10 is working , i think

iwconfig wlan0
wlan0 IEEE 802.11abgn ESSID:"etajul 3"
          Mode:Managed Frequency:2.462 GHz Access Point: 14:D6:4D:79:AF:BA
          Bit Rate=36 Mb/s Tx-Power=15 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:off
          Link Quality=44/70 Signal level=-66 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:1019 Missed beacon:0

dmesg | egrep 'iwl|firm|radio|switch|wlan0'
[ 15.084309] iwl4965: Intel(R) Wireless WiFi 4965 driver for Linux, in-tree:
[ 15.084312] iwl4965: Copyright(c) 2003-2011 Intel Corporation
[ 15.084349] iwl4965 0000:07:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 15.084427] iwl4965 0000:07:00.0: Detected Intel(R) Wireless WiFi Link 4965AGN, REV=0x4
[ 15.127339] iwl4965 0000:07:00.0: device EEPROM VER=0x36, CALIB=0x5
[ 15.136291] iwl4965 0000:07:00.0: Tunable channels: 13 802.11bg, 19 802.11a channels
[ 15.136331] iwl4965 0000:07:00.0: irq 47 for MSI/MSI-X
[ 15.239874] iwl4965 0000:07:00.0: loaded firmware version 228.61.2.24
[ 15.306136] ieee80211 phy0: Selected rate control algorithm 'iwl-4965-rs'
[ 16.133060] Console: switching to colour frame buffer device 180x56
[ 18.425995] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 18.428542] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 22.870261] wlan0: authenticate with 14:d6:4d:79:af:ba
[ 22.878274] wlan0: send auth to 14:d6:4d:79:af:ba (try 1/3)
[ 22.888135] wlan0: authenticated
[ 22.888318] iwl4965 0000:07:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 22.888322] iwl4965 0000:07:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[ 22.892301] wlan0: associate with 14:d6:4d:79:af:ba (try 1/3)
[ 22.895568] wlan0: RX AssocResp from 14:d6:4d:79:af:ba (capab=0x411 status=0 aid=4)
[ 22.924243] wlan0: associated
[ 22.924280] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

sudo lshw -C network
^[[B^[[Afs)

  *-network
       description: Ethernet interface
       product: 88E8055 PCI-E Gigabit Ethernet Controller
       vendor: Marvell Technology Group Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 13
       serial: 00:1f:c6:18:2e:18
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:46 memory:fdffc000-fdffffff ioport:a800(size=256) memory:fdfc0000-fdfdffff
  *-network
       description: Wireless interface
       product: PRO/Wireless 4965 AG or AGN [Kedron] Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wlan0
       version: 61
       serial: 00:1d:e0:49:fb:63
       width: 64 bits
       clock: 33MHz
       capabiliti...

[penalvch (penalvch)]

Baditaflorin, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc5

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]