Thread: Intel PRO/2200 Wireless randomly drops connection

i seem have unique issue wireless connection have not been able track down , quite annoying. wireless connection works great few days , "wireless network key required" window while signed in , running. have not been @ computer when happens, when come , unlock screen there. not seem related length of time between reboots time had shut-down computer while during day.

if enter passphrase not connect , end having reboot wireless connection back. however, if cancel request passphrase, restart networking , select wireless network connect to, after few attempts reconnect.

not believe hardware error not have issue when running windows on same laptop. also, had second laptop running windows during same period , same wireless adapter , did not disconnect. not think access point.

have proftp running , overnight have computer connect laptop synch data. not happen every night, , if run ftp during day , watch it, don't have error. timing wise, connection seems drop overnight. have not tried hard-wired connection yet out of ports.

information below gathered "wireless network key required" window open.

running ubuntu 8.04.2
kernal 2.6.24-24-generic i686
system ibm laptop, thinkpad t43.
wireless controller intel pro/wireless 2200bg (rev5)

ifconfig eth1

code:

eth1      link encap:ethernet  hwaddr xx:xx:xx:xx:xx:xx             broadcast multicast  mtu:1500  metric:1           rx packets:1282658 errors:13715 dropped:13715 overruns:0 frame:0           tx packets:127550 errors:0 dropped:0 overruns:0 carrier:1           collisions:0 txqueuelen:1000            rx bytes:8698246 (8.2 mb)  tx bytes:1203113 (1.1 mb)           interrupt:23 base address:0x6000 memory:90301000-90301fff

iwconfig eth1

code:

eth1      unassociated  essid:""             mode:managed  frequency=2.417 ghz  access point: xx:xx:xx:xx:xx:xx              bit rate:0 kb/s   tx-power=20 dbm   sensitivity=8/0             retry limit:7   rts thr:off   fragment thr:off           power management:off           link quality:0  signal level:0  noise level:0           rx invalid nwid:0  rx invalid crypt:13714  rx invalid frag:0           tx excessive retries:0  invalid misc:0   missed beacon:0

module check (i believe these correct modules based on other posts)

code:

ipw2200               146120  0  ieee80211              35528  1 ipw2200

kernal boot messages

code:

[   27.746737] ipw2200: intel(r) pro/wireless 2200/2915 network driver, 1.2.2kmprq [   27.746740] ipw2200: copyright(c) 2003-2006 intel corporation [   27.811679] ipw2200: detected intel pro/wireless 2200bg network connection [   30.977565] ipw2200: detected geography zzm (11 802.11bg channels, 0 802.11a channels) [ 3562.243598] ipw2200: firmware error detected.  restarting.

network config (i copied wireless interface info)

code:

*-network        description: wireless interface        product: pro/wireless 2200bg network connection        vendor: intel corporation        physical id: 2        bus info: pci@0000:04:02.0        logical name: eth1        version: 05        serial: xx:xx:xx:xx:xx:xx        width: 32 bits        clock: 33mhz        capabilities: pm bus_master cap_list ethernet physical wireless        configuration: broadcast=yes driver=ipw2200 driverversion=1.2.2kmprq firmware=abg:9.0.2.6 (mar 22 2005) latency=64 link=no maxlatency=24 mingnt=3 module=ipw2200 multicast=yes wireless=unassociated

scan networks (i copied network cell info)

code:

eth1      scan completed :           cell 01 - address: xx:xx:xx:xx:xx:xx                     essid:"net4u2"                     protocol:ieee 802.11bg                     mode:master                     frequency:2.417 ghz (channel 2)                     encryption key:on                     bit rates:1 mb/s; 2 mb/s; 5.5 mb/s; 11 mb/s; 6 mb/s                               9 mb/s; 12 mb/s; 18 mb/s; 24 mb/s; 36 mb/s                               48 mb/s; 54 mb/s                     quality=91/100  signal level=-37 dbm                       ie: wpa version 1                         group cipher : tkip                         pairwise ciphers (1) : tkip                         authentication suites (1) : psk                     extra: last beacon: 72ms ago

after restarting networking , re-establishing connection:

ifconfig

code:

eth1      link encap:ethernet  hwaddr xx:xx:xx:xx:xx:xx             inet addr:192.168.100.12  bcast:192.168.100.255  mask:255.255.255.0           inet6 addr: fe80::216:6fff:fe91:f35e/64 scope:link           broadcast running multicast  mtu:1500  metric:1           rx packets:3294 errors:13716 dropped:13716 overruns:0 frame:0           tx packets:1566 errors:0 dropped:0 overruns:0 carrier:1           collisions:0 txqueuelen:1000            rx bytes:10305148 (9.8 mb)  tx bytes:1486952 (1.4 mb)           interrupt:23 base address:0x6000 memory:90301000-90301fff

iwconfig

code:

eth1      ieee 802.11g  essid:"net4u2"             mode:managed  frequency:2.417 ghz  access point: xx:xx:xx:xx:xx:xx              bit rate:36 mb/s   tx-power=20 dbm   sensitivity=8/0             retry limit:7   rts thr:off   fragment thr:off           power management:off           link quality=86/100  signal level=-39 dbm  noise level=-87 dbm           rx invalid nwid:0  rx invalid crypt:13715  rx invalid frag:0           tx excessive retries:0  invalid misc:0   missed beacon:1

any ideas may causing dropping of connection?

could related http://ubuntuforums.org/showthread.php?t=1146367

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Networking & Wireless [ubuntu] Intel PRO/2200 Wireless randomly drops connection

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