Same problem for me:
[ 715.622759] wlan0: deauthenticated from 94:44:52:a8:03:0d (Reason: 3)
[ 715.630752] iwlagn 0000:44:00.0: Stopping AGG while state not ON or starting
[ 715.765821] cfg80211: All devices are disconnected, going to restore
regulatory settings
[ 715.765831] cfg80211: Restoring regulatory settings
[ 715.765840] cfg80211: Calling CRDA to update world regulatory domain
[ 715.772672] cfg80211: Ignoring regulatory request Set by core since the
driver uses its own custom regulatory domain
[ 715.772685] cfg80211: World regulatory domain updated:
[ 715.772688] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp)
[ 715.772695] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi,
2000 mBm)
[ 715.772701] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi,
2000 mBm)
[ 715.772706] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi,
2000 mBm)
[ 715.772712] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi,
2000 mBm)
[ 715.772717] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi,
2000 mBm)
[ 718.571121] wlan0: authenticate with 94:44:52:a8:03:0d (try 1)
[ 718.573362] wlan0: authenticated
[ 718.573517] wlan0: associate with 94:44:52:a8:03:0d (try 1)
[ 718.769443] wlan0: associate with 94:44:52:a8:03:0d (try 2)
[ 718.969277] wlan0: associate with 94:44:52:a8:03:0d (try 3)
[ 719.169073] wlan0: association with 94:44:52:a8:03:0d timed out
[ 731.269994] wlan0: authenticate with 94:44:52:a8:03:0d (try 1)
[ 731.272588] wlan0: authenticated
[ 731.272719] wlan0: waiting for beacon from 94:44:52:a8:03:0d
[ 731.330797] wlan0: beacon received
[ 731.387791] wlan0: associate with 94:44:52:a8:03:0d (try 1)
[ 731.406204] wlan0: RX AssocResp from 94:44:52:a8:03:0d (capab=0x11 status=0
aid=3)
[ 731.406211] wlan0: associated
[ 731.412812] cfg80211: Calling CRDA for country: US
I have (lshw)
-network
description: Wireless interface
product: Centrino Ultimate-N 6300
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:44:00.0
logical name: wlan0
version: 35
serial: 00:24:d7:5e:8b:2c
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet
physical wireless
configuration: broadcast=yes driver=iwlagn
driverversion=2.6.38-8-generic firmware=9.221.4.1 build 25532 ip=192.168.1.1
latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:55 memory:d3300000-d3301fff
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https://bugs.launchpad.net/bugs/548992
Title:
Wireless connection frequently drops [deauthenticating by local
choice (reason=3)]
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