&(#%$!@} wireless

Tim Tebbit ttebbit at gmail.com
Thu Sep 3 06:21:50 UTC 2009


Robert Holtzman wrote:
> Tried posting this on the local LUG list with spotty results so I'll
> try here.
> 
> Sorry for the length of this.
> 
> After a looooong losing fight trying to get wireless working on my Dell
> Latitude laptop running Debian Lenny I gave up and hard wired the laptop
> and the desktop to the Linksys WRT54GL router. Recently I replaced Lenny
> with Ubuntu Hardy. When I fired it up the first thing I saw was that
> Network Manager detected the wireless network, which was something Lenny
> running Network Manager or wicd didn't. I could connect and access the
> internet with no trouble. This bliss ensued for a few weeks. Tonight, NM
> stopped detecting the network, iwconfig showed no eth1. Out of curiosity
> I installed wicd. It detected the network and when I tried to connect
> the authentication was validated but the IP wasn't obtained.
> 
> [holtzm at localhost]~$ ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:0f:1f:be:3a:14
>             UP BROADCAST MULTICAST  MTU:1500  Metric:1
>             RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>             TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>             collisions:0 txqueuelen:1000
>             RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>             Interrupt:11
> 
> eth1      Link encap:Ethernet  HWaddr 00:15:00:4a:a3:4c
>             inet6 addr: fe80::215:ff:fe4a:a34c/64 Scope:Link
>             UP BROADCAST MULTICAST  MTU:1500  Metric:1
>             RX packets:2 errors:0 dropped:33 overruns:0 frame:0
>             TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
>             collisions:0 txqueuelen:1000
>             RX bytes:604260 (590.0 KB)  TX bytes:617738 (603.2 KB)
>             Interrupt:5 Base address:0x4000 Memory:fafef000-fafeffff
> 
> eth1:avahi Link encap:Ethernet  HWaddr 00:15:00:4a:a3:4c
>             inet addr:169.254.4.252  Bcast:169.254.255.255
> Mask:255.255.0.0
>             UP BROADCAST MULTICAST  MTU:1500  Metric:1
>             Interrupt:5 Base address:0x4000 Memory:fafef000-fafeffff
> 
> lo        Link encap:Local Loopback
>             inet addr:127.0.0.1  Mask:255.0.0.0
>             inet6 addr: ::1/128 Scope:Host
>             UP LOOPBACK RUNNING  MTU:16436  Metric:1
>             RX packets:2678 errors:0 dropped:0 overruns:0 frame:0
>             TX packets:2678 errors:0 dropped:0 overruns:0 carrier:0
>             collisions:0 txqueuelen:0
>             RX bytes:141874 (138.5 KB)  TX bytes:141874 (138.5 KB)
> 
> [holtzm at localhost]~$ iwlist scanning
> eth1      Scan completed :
>             Cell 01 - Address: 00:23:69:56:30:F9
>                       ESSID:"linksys"
>                       Protocol:IEEE 802.11bg
>                       Mode:Master
>                       Frequency:2.437 GHz (Channel 6)
>                       Encryption key:on
>                       Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
>                                 11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36
> Mb/s
>                                 48 Mb/s; 54 Mb/s
>                       Quality=92/100  Signal level=-37 dBm
>                       IE: WPA Version 1
>                           Group Cipher : TKIP
>                           Pairwise Ciphers (2) : CCMP TKIP
>                           Authentication Suites (1) : PSK
>                       IE: IEEE 802.11i/WPA2 Version 1
>                           Group Cipher : TKIP
>                           Pairwise Ciphers (2) : CCMP TKIP
>                           Authentication Suites (1) : PSK
>                       Extra: Last beacon: 1092ms ago
> 
> I omitted the references to lo, eth0, and the other cells.
> 
> The first time around I ran searches and read docs until I was
> cross-eyed.
> 
> The behavior I described also occurred the first time around.
> 
> Here we go again. As always, any pointers etc would be
> appreciated.
> 

What card do you have? Do you watch updates? Kernel, firmware etc? Any
lately for you?

$ lspci |grep Network

NM sucks btw. wicd is much better. I'd stick with that.





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