I am getting 30% packet loss, 0% packet loss and 100% packet at times to the AP. And sometimes dropping the connection all together. It seems to have been right after latest kernel update on Kubuntu 11.10. Both Network Manager and WICD react the same way, however with WICD it is much easier to recover.
/sbin/iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"MiFi2372 5020"
Mode:Managed Frequency:2.437 GHz Access Point: 44:A7:CF:55:E1:BE
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr
ff Fragment thr
ff
Power Management
ff
Link Quality=62/70 Signal level=-48 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:28 Invalid misc:31 Missed beacon:0
sudo iwlist wlan0 scan
[sudo] password for user:
wlan0 Scan completed :
Cell 01 - Address: 44:A7:CF:55:E1:BE
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=61/70 Signal level=-49 dBm
Encryption key
n
ESSID:"MiFi2372 5020"
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
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000003b7fef179
Extra: Last beacon: 460ms ago
IE: Unknown: 000D4D694669323337322035303230
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Our other MACOSX system is stable. dmesg is not saying anything. The following is the wicd.log file:
2012/01/22 20:40:29 :: Forced disconnect on
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/avahi-autoipd with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/avahi-autoipd returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/bind9 with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/bind9 returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/upstart with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/upstart returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/wpasupplicant with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/wpasupplicant returned 0
2012/01/22 20:40:29 :: attempting to set hostname with dhclient
2012/01/22 20:40:29 :: using dhcpcd or another supported client may work better
2012/01/22 20:40:29 :: /sbin/dhclient -v -r wlan0
Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit
https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/f4:ec:38:8b:a3:17
Sending on LPF/wlan0/f4:ec:38:8b:a3:17
Sending on Socket/fallback
DHCPRELEASE on wlan0 to 192.168.1.1 port 67
2012/01/22 20:40:29 :: /sbin/ip route flush dev wlan0
2012/01/22 20:40:29 :: Executing /etc/network/if-post-down.d/avahi-daemon with params
2012/01/22 20:40:29 :: /etc/network/if-post-down.d/avahi-daemon returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-post-down.d/wireless-tools with params
2012/01/22 20:40:29 :: /etc/network/if-post-down.d/wireless-tools returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-post-down.d/wpasupplicant with params
2012/01/22 20:40:29 :: /etc/network/if-post-down.d/wpasupplicant returned 0
2012/01/22 20:40:29 :: wpa_cli -i wlan0 terminate
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/avahi-autoipd with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/avahi-autoipd returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/bind9 with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/bind9 returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/upstart with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/upstart returned 0
2012/01/22 20:40:29 :: Executing /etc/network/if-down.d/wpasupplicant with params
2012/01/22 20:40:29 :: /etc/network/if-down.d/wpasupplicant returned 0
2012/01/22 20:40:29 :: attempting to set hostname with dhclient
2012/01/22 20:40:29 :: using dhcpcd or another supported client may work better
2012/01/22 20:40:29 :: /sbin/dhclient -v -r eth0
Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit
https://www.isc.org/software/dhcp/
Listening on LPF/eth0/38:60:77:0d:c7:76
Sending on LPF/eth0/38:60:77:0d:c7:76
Sending on Socket/fallback
2012/01/22 20:40:29 :: /sbin/ip route flush dev eth0
2012/01/22 20:40:30 :: Executing /etc/network/if-post-down.d/avahi-daemon with params
2012/01/22 20:40:30 :: /etc/network/if-post-down.d/avahi-daemon returned 0
2012/01/22 20:40:30 :: Executing /etc/network/if-post-down.d/wireless-tools with params
2012/01/22 20:40:30 :: /etc/network/if-post-down.d/wireless-tools returned 0
2012/01/22 20:40:30 :: Executing /etc/network/if-post-down.d/wpasupplicant with params
2012/01/22 20:40:30 :: /etc/network/if-post-down.d/wpasupplicant returned 0
2012/01/22 20:42:39 :: found backend in configuration external
2012/01/22 20:43:33 :: setting use global dns to 0
2012/01/22 20:43:33 :: setting global dns
2012/01/22 20:43:33 :: global dns servers are
2012/01/22 20:43:33 :: domain is
2012/01/22 20:43:33 :: search domain is
2012/01/22 20:43:33 :: setting wireless interface wlan0
2012/01/22 20:43:33 :: setting wired interface eth0
2012/01/22 20:43:33 :: setting wpa driver wext
2012/01/22 20:43:33 :: setting automatically reconnect when connection drops 0
2012/01/22 20:43:33 :: setting backend to external
2012/01/22 20:43:33 :: Setting dhcp client to 0
The following says Disabled because the connection dropped twice while I was composing this.
sudo lshw -C network
*-network
description: Ethernet interface
product: 82579V Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 05
serial: 38:60:77:0d:c7:76
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.3.10-k2 firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:48 memory:fe600000-fe61ffff memory:fe624000-fe624fff ioport:f080(size=32)
*-network DISABLED
description: Wireless interface
physical id: 1
bus info: usb@1:1.4
logical name: wlan0
serial: f4:ec:38:8b:a3:17
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=ath9k_htc driverversion=3.0.0-15-generic firmware=1.3 link=no multicast=yes wireless=IEEE 802.11bgn
Any logging that I can do to figure out why the connection is bouncing, dropping, intermittent? Thank you for any direction that can be provided.
