Comment 46 for bug 317728

I have the same problem with my Toshiba Tecra M7 on which I just installed lucid with kernel 2.6.32-24-generic.
I have installed the package linux-backports-modules-wireless-lucid-generic, but I still get disconnects, even while browsing.

Here's lshw -C network:
*-network
       description: Wireless interface
       product: PRO/Wireless 3945ABG [Golan] Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 02
       serial: 00:18:de:4e:e5:2f
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwl3945 driverversion=2.6.32-24-generic firmware=15.32.2.9 ip=192.168.100.8 latency=0 multicast=yes wireless=IEEE 802.11abg
       resources: irq:28 memory:ffcff000-ffcfffff

Here from kern.log:
Sep 22 00:11:59 dknux kernel: [18696.790462] iwl3945 0000:03:00.0: Microcode SW error detected. Restarting 0x82000008.
Sep 22 00:11:59 dknux kernel: [18696.790500] iwl3945 0000:03:00.0: Start IWL Error Log Dump:
Sep 22 00:11:59 dknux kernel: [18696.790506] iwl3945 0000:03:00.0: Status: 0x000202E4, count: 1
Sep 22 00:11:59 dknux kernel: [18696.790511] iwl3945 0000:03:00.0: Desc Time asrtPC blink2 ilink1 nmiPC Line
Sep 22 00:11:59 dknux kernel: [18696.790738] iwl3945 0000:03:00.0: SYSASSERT (#5) 1615053811 0x008B6 0x00274 0x00320 0x01472 116
Sep 22 00:11:59 dknux kernel: [18696.790741]
Sep 22 00:11:59 dknux kernel: [18696.790871] iwl3945 0000:03:00.0: Start IWL Event Log Dump: display last 20 count
Sep 22 00:11:59 dknux kernel: [18696.790914] iwl3945 0000:03:00.0: 1614987569 0x00000080 0313
Sep 22 00:11:59 dknux kernel: [18696.790938] iwl3945 0000:03:00.0: 1614987571 0x000001fe 0501
Sep 22 00:11:59 dknux kernel: [18696.790963] iwl3945 0000:03:00.0: 1614988327 0x00000000 0502
Sep 22 00:11:59 dknux kernel: [18696.790988] iwl3945 0000:03:00.0: 1614989119 0x000000c3 0310
Sep 22 00:11:59 dknux kernel: [18696.791012] iwl3945 0000:03:00.0: 1614989120 0x00000000 0314
Sep 22 00:11:59 dknux kernel: [18696.791037] iwl3945 0000:03:00.0: 1614989121 0x0000031a 0501
Sep 22 00:11:59 dknux kernel: [18696.791061] iwl3945 0000:03:00.0: 1614989126 0x000003fc 0504
Sep 22 00:11:59 dknux kernel: [18696.791086] iwl3945 0000:03:00.0: 1614989127 0x6042c744 0503
Sep 22 00:11:59 dknux kernel: [18696.791111] iwl3945 0000:03:00.0: 1614989127 0x00000010 0503
Sep 22 00:11:59 dknux kernel: [18696.791136] iwl3945 0000:03:00.0: 1614989128 0x0b0188bc 0503
Sep 22 00:11:59 dknux kernel: [18696.791161] iwl3945 0000:03:00.0: 1614989129 0x6042c744 0503
Sep 22 00:11:59 dknux kernel: [18696.791185] iwl3945 0000:03:00.0: 1614989129 0x00000010 0503
Sep 22 00:11:59 dknux kernel: [18696.791210] iwl3945 0000:03:00.0: 1614989130 0x0b0188bc 0503
Sep 22 00:11:59 dknux kernel: [18696.791235] iwl3945 0000:03:00.0: 1614989132 0x0b0188b4 0500
Sep 22 00:11:59 dknux kernel: [18696.791259] iwl3945 0000:03:00.0: 1614989134 0x0b0188b4 0600
Sep 22 00:11:59 dknux kernel: [18696.791284] iwl3945 0000:03:00.0: 1614989134 0x00000000 0600
Sep 22 00:11:59 dknux kernel: [18696.791308] iwl3945 0000:03:00.0: 1615024979 0x00000000 0301
Sep 22 00:11:59 dknux kernel: [18696.791333] iwl3945 0000:03:00.0: 1615025361 0x00000000 0304
Sep 22 00:11:59 dknux kernel: [18696.791357] iwl3945 0000:03:00.0: 1615053809 0x00000002 0123
Sep 22 00:11:59 dknux kernel: [18696.791382] iwl3945 0000:03:00.0: 1615053812 0x00000100 0125
Sep 22 00:11:59 dknux kernel: [18696.791402] iwl3945 0000:03:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x0250 ser 0x00740000
Sep 22 00:11:59 dknux kernel: [18696.803325] iwl3945 0000:03:00.0: Can't stop Rx DMA.