apport information ** Attachment added: "PulseList.txt" https://bugs.launchpad.net/bugs/837076/+attachment/3816931/+files/PulseList.txt
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [iwlagn] Intel Centrino Ultimate-N 6300 AGN and packet loss Status in “linux” package in Ubuntu: Confirmed Status in “linux” source package in Saucy: Confirmed Bug description: Hi, I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:"star-local" Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms [ 5677.146495] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree: [ 5677.146504] iwlagn: Copyright(c) 2003-2011 Intel Corporation [ 5677.146662] iwlagn 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 5677.146734] iwlagn 0000:01:00.0: setting latency timer to 64 [ 5677.146841] iwlagn 0000:01:00.0: Detected Intel(R) Centrino(R) Ultimate-N 6300 AGN, REV=0x74 [ 5677.164555] iwlagn 0000:01:00.0: device EEPROM VER=0x436, CALIB=0x6 [ 5677.164562] iwlagn 0000:01:00.0: Device SKU: 0Xb [ 5677.164566] iwlagn 0000:01:00.0: Valid Tx ant: 0X7, Valid Rx ant: 0X7 [ 5677.164650] iwlagn 0000:01:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels [ 5677.165072] iwlagn 0000:01:00.0: irq 46 for MSI/MSI-X [ 5677.168745] iwlagn 0000:01:00.0: loaded firmware version 9.221.4.1 build 25532 [ 5677.169561] Registered led device: phy6-led [ 5677.169644] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 5677.170079] ieee80211 phy6: Selected rate control algorithm 'iwl-agn-rs' [ 5677.221260] udevd[11216]: renamed network interface wlan0 to wlan1 [ 5677.640171] ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 5685.467019] wlan1: authenticate with 00:22:75:29:ec:61 (try 1) [ 5685.469706] wlan1: authenticated [ 5685.470195] wlan1: associate with 00:22:75:29:ec:61 (try 1) [ 5685.662167] wlan1: associate with 00:22:75:29:ec:61 (try 2) [ 5685.666099] wlan1: RX AssocResp from 00:22:75:29:ec:61 (capab=0x411 status=0 aid=1) [ 5685.666110] wlan1: associated [ 5685.680357] ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 5685.680483] cfg80211: Calling CRDA for country: US [ 5685.689341] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689355] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689364] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689373] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689381] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689389] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689397] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689406] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689413] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689422] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689429] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689438] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689446] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689454] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689461] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689469] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689475] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689482] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689490] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689498] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689504] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689511] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5685.689517] cfg80211: Disabling freq 2467 MHz [ 5685.689521] cfg80211: Disabling freq 2472 MHz [ 5685.689527] cfg80211: Updating information on frequency 5180 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689536] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5685.689542] cfg80211: Updating information on frequency 5200 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689550] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5685.689557] cfg80211: Updating information on frequency 5220 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689566] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5685.689573] cfg80211: Updating information on frequency 5240 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689582] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5685.689590] cfg80211: Updating information on frequency 5260 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689598] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689604] cfg80211: Updating information on frequency 5280 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689612] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689618] cfg80211: Updating information on frequency 5300 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689626] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689632] cfg80211: Updating information on frequency 5320 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689639] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689645] cfg80211: Updating information on frequency 5500 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689653] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689659] cfg80211: Updating information on frequency 5520 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689666] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689672] cfg80211: Updating information on frequency 5540 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689679] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689685] cfg80211: Updating information on frequency 5560 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689693] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689700] cfg80211: Updating information on frequency 5580 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689707] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689713] cfg80211: Disabling freq 5600 MHz [ 5685.689717] cfg80211: Disabling freq 5620 MHz [ 5685.689721] cfg80211: Disabling freq 5640 MHz [ 5685.689727] cfg80211: Updating information on frequency 5660 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689735] cfg80211: 5650000 KHz - 5710000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689742] cfg80211: Updating information on frequency 5680 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689750] cfg80211: 5650000 KHz - 5710000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689758] cfg80211: Updating information on frequency 5700 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689766] cfg80211: 5650000 KHz - 5710000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5685.689773] cfg80211: Updating information on frequency 5745 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689781] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5685.689787] cfg80211: Updating information on frequency 5765 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689795] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5685.689801] cfg80211: Updating information on frequency 5785 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689810] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5685.689818] cfg80211: Updating information on frequency 5805 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689826] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5685.689833] cfg80211: Updating information on frequency 5825 MHz for a 20 MHz width channel with regulatory rule: [ 5685.689840] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5685.689854] cfg80211: Regulatory domain changed to country: US [ 5685.689859] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 5685.689867] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm) [ 5685.689875] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm) [ 5685.689881] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5685.689888] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5685.689894] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5685.689900] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm) [ 5696.142317] wlan1: no IPv6 routers present [ 5704.844712] cfg80211: All devices are disconnected, going to restore regulatory settings [ 5704.844726] cfg80211: Restoring regulatory settings [ 5704.844751] cfg80211: Calling CRDA to update world regulatory domain [ 5704.852662] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 5704.852672] cfg80211: World regulatory domain updated: [ 5704.852676] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 5704.852683] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5704.852689] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 5704.852695] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 5704.852700] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5704.852705] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5707.485993] wlan1: authenticate with 00:22:75:29:ec:61 (try 1) [ 5707.684842] wlan1: authenticate with 00:22:75:29:ec:61 (try 2) [ 5707.687942] wlan1: authenticated [ 5707.688277] wlan1: associate with 00:22:75:29:ec:61 (try 1) [ 5707.692145] wlan1: RX ReassocResp from 00:22:75:29:ec:61 (capab=0x411 status=0 aid=1) [ 5707.692153] wlan1: associated [ 5707.706352] cfg80211: Calling CRDA for country: US [ 5707.715195] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715200] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715203] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715207] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715209] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715212] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715215] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715218] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715221] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715224] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715226] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715229] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715232] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715235] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715238] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715241] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715243] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715246] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715249] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715252] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715255] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715257] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) [ 5707.715260] cfg80211: Disabling freq 2467 MHz [ 5707.715262] cfg80211: Disabling freq 2472 MHz [ 5707.715264] cfg80211: Updating information on frequency 5180 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715267] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5707.715270] cfg80211: Updating information on frequency 5200 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715273] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5707.715275] cfg80211: Updating information on frequency 5220 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715278] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5707.715281] cfg80211: Updating information on frequency 5240 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715284] cfg80211: 5170000 KHz - 5250000 KHz @ KHz), (300 mBi, 1700 mBm) [ 5707.715287] cfg80211: Updating information on frequency 5260 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715290] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715292] cfg80211: Updating information on frequency 5280 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715295] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715298] cfg80211: Updating information on frequency 5300 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715301] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715303] cfg80211: Updating information on frequency 5320 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715306] cfg80211: 5250000 KHz - 5330000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715308] cfg80211: Updating information on frequency 5500 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715311] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715313] cfg80211: Updating information on frequency 5520 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715315] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715318] cfg80211: Updating information on frequency 5540 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715320] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715322] cfg80211: Updating information on frequency 5560 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715325] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715327] cfg80211: Updating information on frequency 5580 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715330] cfg80211: 5490000 KHz - 5600000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715332] cfg80211: Disabling freq 5600 MHz [ 5707.715333] cfg80211: Disabling freq 5620 MHz [ 5707.715335] cfg80211: Disabling freq 5640 MHz [ 5707.715337] cfg80211: Updating information on frequency 5660 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715340] cfg80211: 5650000 KHz - 5710000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715343] cfg80211: Updating information on frequency 5680 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715346] cfg80211: 5650000 KHz - 5710000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715348] cfg80211: Updating information on frequency 5700 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715351] cfg80211: 5650000 KHz - 5710000 KHz @ KHz), (300 mBi, 2000 mBm) [ 5707.715354] cfg80211: Updating information on frequency 5745 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715357] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5707.715359] cfg80211: Updating information on frequency 5765 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715362] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5707.715365] cfg80211: Updating information on frequency 5785 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715368] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5707.715370] cfg80211: Updating information on frequency 5805 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715373] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5707.715376] cfg80211: Updating information on frequency 5825 MHz for a 20 MHz width channel with regulatory rule: [ 5707.715379] cfg80211: 5735000 KHz - 5835000 KHz @ KHz), (300 mBi, 3000 mBm) [ 5707.715385] cfg80211: Regulatory domain changed to country: US [ 5707.715387] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 5707.715390] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm) [ 5707.715393] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm) [ 5707.715395] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5707.715398] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5707.715401] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 5707.715404] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm) [ 5730.464633] iwlagn 0000:01:00.0: iwlagn_tx_agg_start on ra = 00:22:75:29:ec:61 tid = 0 Now removing the module and reloading it with "11n_disable=1" seems to fix things - no packet loss and ping times slightly lower. wlan1 IEEE 802.11abg ESSID:"star-local" Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hloeung 2208 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xc0700000 irq 48' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:10ec0269,144dc098,00100100 HDA:80862805,80860101,00100000' Controls : 18 Simple ctrls : 10 Date: Tue Aug 30 09:21:33 2011 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413) MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A ProcEnviron: LANGUAGE=en_AU:en_GB:en PATH=(custom, no user) LANG=en_AU.UTF-8 LC_MESSAGES=en_AU.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-9-generic root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro elevator=deadline apparmor=0 quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.0.0-9-generic N/A linux-backports-modules-3.0.0-9-generic N/A linux-firmware 1.60 RfKill: 7: phy7: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux StagingDrivers: mei UpgradeStatus: Upgraded to oneiric on 2011-08-08 (21 days ago) dmi.bios.date: 03/08/2011 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: 04HL dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 90X3A dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 90X3A dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.12.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hloeung 1724 F.... pulseaudio DistroRelease: Ubuntu 13.10 Lsusb: Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A MarkForUpload: True Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-7-generic root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro quiet splash elevator=noop apparmor=0 pcie_aspm=force i915.i915_enable_rc6=7 i915.i915_enable_fbc=1 i915.lvds_downclock=1 drm.vblankoffdelay=1 intel_pstate=enable zswap.enabled=1 vt.handoff=7 ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0 RelatedPackageVersions: linux-restricted-modules-3.11.0-7-generic N/A linux-backports-modules-3.11.0-7-generic N/A linux-firmware 1.113 StagingDrivers: zram Tags: saucy staging Uname: Linux 3.11.0-7-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin audio cdrom dialout libvirtd lpadmin netdev plugdev sambashare users video dmi.bios.date: 03/08/2011 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: 04HL dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 90X3A dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 90X3A dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. --- ApportVersion: 2.12.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hloeung 1724 F.... pulseaudio DistroRelease: Ubuntu 13.10 Lsusb: Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A MarkForUpload: True Package: linux PackageArchitecture: amd64 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-7-generic root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro quiet splash elevator=noop apparmor=0 pcie_aspm=force i915.i915_enable_rc6=7 i915.i915_enable_fbc=1 i915.lvds_downclock=1 drm.vblankoffdelay=1 intel_pstate=enable zswap.enabled=1 vt.handoff=7 ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0 RelatedPackageVersions: linux-restricted-modules-3.11.0-7-generic N/A linux-backports-modules-3.11.0-7-generic N/A linux-firmware 1.113 StagingDrivers: zram Tags: saucy staging Uname: Linux 3.11.0-7-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin audio cdrom dialout libvirtd lpadmin netdev plugdev sambashare users video dmi.bios.date: 03/08/2011 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: 04HL dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 90X3A dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 90X3A dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. 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