12.10 periodic wireless dropouts after update

[jamarsh]

Newly installed 12.10. Seemed to work find at first, now I am experiencing wireless drops from time to time. I disconnect from the service and then reconnect. This seems to work for a while and then the problem comes up again. Acer Aspire laptop 5742-7120.

Has worked fine since ubuntu 10.10 on this laptop.

[praseodym]

Hi,

please show:

lspci -nnk | grep -iA2 net
lsusb
lsmod
iwconfig
sudo iwlist scan

Tried pure WPA2-AES (CCMP) encryption? Fixed channel?

[jamarsh]

Hi praseodym:
Thanks for the reply. Here are the answers to your queries:

lspci -nnk | grep -iA2 net

01:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM57780 Gigabit Ethernet PCIe [14e4:1692] (rev 01)
Subsystem: Acer Incorporated [ALI] Device [1025:036d]
Kernel driver in use: tg3
--
02:00.0 Network controller [0280]: Broadcom Corporation BCM43225 802.11b/g/n [14e4:4357] (rev 01)
Subsystem: Foxconn International, Inc. T77H103.00 Wireless Half-size Mini PCIe Card [105b:e021]
Kernel driver in use: bcma-pci-bridge

lsusb
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 064e:a219 Suyin Corp. 1.3M WebCam (notebook emachines E730, Acer sub-brand)
Bus 002 Device 005: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 002 Device 006: ID 046d:c045 Logitech, Inc. Optical Mouse

lsmod
Module Size Used by
snd_hda_codec_hdmi 32049 1
snd_hda_codec_realtek 78048 1
parport_pc 32689 0
ppdev 17074 0
bnep 18141 2
rfcomm 46620 0
bluetooth 209249 10 bnep,rfcomm
coretemp 13401 0
kvm_intel 132760 0
kvm 414071 1 kvm_intel
arc4 12530 2
brcmsmac 531905 0
mac80211 539958 1 brcmsmac
brcmutil 14756 1 brcmsmac
cfg80211 206797 2 brcmsmac,mac80211
cordic 12575 1 brcmsmac
snd_hda_intel 33492 5
snd_hda_codec 134213 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel
snd_hwdep 17699 1 snd_hda_codec
snd_pcm 96668 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
microcode 22804 0
snd_seq_midi 13325 0
snd_rawmidi 30513 1 snd_seq_midi
snd_seq_midi_event 14900 1 snd_seq_midi
snd_seq 61555 2 snd_seq_midi,snd_seq_midi_event
uvcvideo 76750 0
videobuf2_core 32852 1 uvcvideo
snd_timer 29426 2 snd_pcm,snd_seq
videodev 120310 2 uvcvideo,videobuf2_core
snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq
videobuf2_vmalloc 12861 1 uvcvideo
videobuf2_memops 13405 1 videobuf2_vmalloc
psmouse 95595 0
serio_raw 13216 0
intel_ips 18244 0
lpc_ich 17062 0
snd 78921 19 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,s nd_seq,snd_timer,snd_seq_device
bcma 35657 1 brcmsmac
soundcore 15048 1 snd
i915 520621 8
mei 40691 0
snd_page_alloc 18485 2 snd_hda_intel,snd_pcm
drm_kms_helper 49113 1 i915
drm 288721 4 i915,drm_kms_helper
i2c_algo_bit 13414 1 i915
joydev 17458 0
acer_wmi 32454 0
sparse_keymap 13891 1 acer_wmi
mxm_wmi 13022 0
video 19336 2 i915,acer_wmi
mac_hid 13206 0
wmi 19071 2 acer_wmi,mxm_wmi
lp 17760 0
parport 46346 3 parport_pc,ppdev,lp
ums_realtek 17950 0
uas 17845 0
tg3 148781 0
hid_generic 12541 0
usbhid 46987 0
hid 100411 2 hid_generic,usbhid
usb_storage 48839 1 ums_realtek

iwconfig
eth0 no wireless extensions.

lo no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"Puppy"
Mode:Managed Frequency:2.462 GHz Access Point: B2:B2C:7E:FC:48
Bit Rate=104 Mb/s Tx-Power=27 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=55/70 Signal level=-55 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:5 Invalid misc:42 Missed beacon:0

[jamarsh]

Oh, and here is the last terminal command:

sudo iwlist scan

eth0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

wlan0 Scan completed :
Cell 01 - Address: B2:B2C:7E:FC:48
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=55/70 Signal level=-55 dBm
Encryption keyn
ESSID:"Puppy"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000bcd6b98150
Extra: Last beacon: 84ms ago
IE: Unknown: 00055075707079
IE: Unknown: 010882848B961224486C
IE: Unknown: 03010B
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: 2D1AEE1117FFFF000001000000000000000000000000000000 000000
IE: Unknown: 3D160B070500000000000000000000000000000000000000
IE: Unknown: 3E0100
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F 00
IE: Unknown: 0B05090059127A
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD07000C4300000000
IE: Unknown: 0706555320010B10
IE: Unknown: DDA50050F204104A0001101044000102103B00010310470010 BC329E001DD811B28601B2B2DC7EFC48102100175A7958454C 20546563686E6F6C6F67792C20436F72702E1023001B5A7958 454C20576972656C6573732041636365737320506F696E7410 24000652543238363010420008313233343536373810540008 00060050F2040001101100095A7958454C2041505310080002 210C103C0001011049000600372A000120
Cell 02 - Address: 00:00:00:00:00:00
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=19/70 Signal level=-91 dBm
Encryption keyn
ESSID:""
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000015b578825e
Extra: Last beacon: 832ms ago
IE: Unknown: 0000
IE: Unknown: 010482848B96
IE: Unknown: 030101
IE: Unknown: 050C000300000000000000000000
IE: Unknown: 2A0104
IE: Unknown: 32080C1218243048606C
Cell 03 - Address: 40:8B:07:A8:43:54
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=25/70 Signal level=-85 dBm
Encryption keyn
ESSID:"LovePotionNumber9"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000404fb1d7d9
Extra: Last beacon: 820ms ago
IE: Unknown: 00114C6F7665506F74696F6E4E756D62657239
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 0706555320010B1E
IE: Unknown: 200100
IE: Unknown: 23021100
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFC191BFFFF000000000000000000000000000000000000 000000
IE: Unknown: 3D1601001700000000000000000000000000000000000000
IE: Unknown: DD800050F204104A0001101044000102103B00010310470010 A45AE9D591689B80BA45B3FC18489AD91021000842726F6164 636F6D1023000842726F6164636F6D10240006313233343536 10420004313233341054000800060050F20400011011000A42 726F6164636F6D415010080002200C103C0001011049000600 372A000120
IE: Unknown: DD090010180202F02C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F 00
Cell 04 - Address: 50:67:F0:EF:7D:9B
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=22/70 Signal level=-88 dBm
Encryption keyn
ESSID:"shakendake"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000004bd38e8c04
Extra: Last beacon: 820ms ago
IE: Unknown: 000A7368616B656E64616B65
IE: Unknown: 010482848B96
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32080C1218243048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD7A0050F204104A0001101044000102103B00010310470010 555555550000C0A800015067F0EF7D9B102100055A7958454C 1023000F5A7958454C2057464144657669636510240007504B 353030305A1042000830303030303030311054000800060050 F20400011011000A504B353030305A20415010080002008C
Cell 05 - Address: 00:24:7B:A4:3A:1E
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=19/70 Signal level=-91 dBm
Encryption keyn
ESSID:"myqwest2781"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000015b578824a
Extra: Last beacon: 812ms ago
IE: Unknown: 000B6D79717765737432373831
IE: Unknown: 010482848B96
IE: Unknown: 030101
IE: Unknown: 050C000300000000000000000000
IE: Unknown: 2A0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32080C1218243048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD0E0050F204104A0001101044000102
Cell 06 - Address: 00:1D:CD:E5:4E:86
Channel:9
Frequency:2.452 GHz (Channel 9)
Quality=33/70 Signal level=-77 dBm
Encryption keyn
ESSID:"ARRIS-4E88"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9

[jamarsh]

With the final bit here:

Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000b98db3f150
Extra: Last beacon: 332ms ago
IE: Unknown: 000A41525249532D34453838
IE: Unknown: 010882848B961224486C
IE: Unknown: 030109
IE: Unknown: 32040C183060
IE: Unknown: 070C5553200101110209140B0111
IE: Unknown: 33082001020304050607
IE: Unknown: 33082105060708090A0B
IE: Unknown: 050400010000
IE: Unknown: 2A0104
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F 00
IE: Unknown: 0B05030018127A
IE: Unknown: DD07000C4307000000
Cell 07 - Address: 84:4B:F5:38:F9:10
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=37/70 Signal level=-73 dBm
Encryption keyff
ESSID:"HP-Print-10-LaserJet 1102"
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000003192eb39c
Extra: Last beacon: 40ms ago
IE: Unknown: 001948502D5072696E742D31302D4C617365724A6574203131 3032
IE: Unknown: 01088C1218243048606C
IE: Unknown: 03010B
IE: Unknown: 050400010000
IE: Unknown: 2A0100
IE: Unknown: DD180050F2020101810027A4000003A4000042435E0062322F 00
Cell 08 - Address: 00:24:7B:A8:09:00
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=20/70 Signal level=-90 dBm
Encryption keyn
ESSID:"myqwest2351"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000000f9d2b24d
Extra: Last beacon: 240ms ago
IE: Unknown: 000B6D79717765737432333531
IE: Unknown: 010482848B96
IE: Unknown: 03010B
IE: Unknown: 050C010300000000000000000000
IE: Unknown: 2A0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32080C1218243048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD0E0050F204104A0001101044000102

[praseodym]

Change the encryption mode to WPA2-AES only and to a fixed channel

[jamarsh]

Change the encryption mode to WPA2-AES only and to a fixed channel

I am using the 'Network' interface app. I cannot find the options you suggested. My current selection is: WPA & WPA2 Personal.

[praseodym]

You need to change it in your router interface, check the manual for it.

[jamarsh]

You need to change it in your router interface, check the manual for it.

Well, I changed the encryption from AES & TKIP to just AES. I'll let you know how that works. There a about 7 other devices connecting via this router, so we shall see if there are any other problems.

[jamarsh]

It still drops the wireless connection, although perhaps not as frequently. What puzzles me is that I can use the mouse to disconnect and then reconnect to the network. Isn't it possible for my computer to detect a problem and reconnect automatically?