No DHCP lease received on boot or resume (Intel 3945)

[jarthurs]

I'm running Feisty on a Toshiba Satellite A100 with Intel 3945 ABG networking. I initially thought I had a problem with WEP but it would appear that what is actually going on is a failure to receive a DHCP lease.

On boot the laptop gets to the desktop but only having the wifi allocated a 169.254.x.x address. Using ifdown/ifup corrects the problem and the wifi successfully gets an IP address.

Similarly after a suspend/resume the networking returns allocated to a 169.254.x.x IP and again ifdown/ifup on eth1 revives the wireless connection.

There is a long pause during boot. In dmesg I'm assuming the figures in the square brackets are timings, if so I've managed to find what appears to be a long pause after the ipw3945 reference followed by a failure to bring up eth1 (wireless) and eth0 (wired) connections.

[ 21.056000] EXT3 FS on sda1, internal journal
[ 21.792000] ipw3945: Detected geography ABG (13 802.11bg channels, 23 802.11a channels)
[ 60.700000] NET: Registered protocol family 10
[ 60.700000] lo: Disabled Privacy Extensions
[ 60.700000] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 76.136000] ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 90.228000] ibm_acpi: ec object not found

It would be nice to have networking 'just work' without all this manual intervention.

Any suggestions gratefully received.

Regards,
Jason.

[jankushka]

Re: No DHCP lease received on boot or resume (Intel 3945)

my ipw3945 works no problems with knetworkmanager and wpa.
pls, open up a konsole a post the result of

cat /etc/network/interfaces

cheers

[jarthurs]

Re: No DHCP lease received on boot or resume (Intel 3945)

my ipw3945 works no problems with knetworkmanager and wpa.
pls, open up a konsole a post the result of

cat /etc/network/interfaces

cheers

Here's a copy of interfaces..

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0

auto eth1
iface eth1 inet dhcp
wireless-essid Vitae
wireless-key <26 digit hex code>

auto eth0
iface eth0 inet dhcp

These settings work, but only after an ifdown/ifup.

Regards,
Jason.

[jankushka]

Re: No DHCP lease received on boot or resume (Intel 3945)

i don't see anything obviously wrong in your interfaces file.

i've found some stuff by searching the web.
it seems there's a whole bunch of problems...
some workarounds do work for some, but not for all...

some stuff (plenty more can be found, i think):
bug filed: https://bugs.launchpad.net/ubuntu/+s...er/+bug/108450
wep does come up in this: http://ubuntuforums.org/showthread.php?t=439065
discussion: http://mepislovers.org/forums/archiv...hp/t-5248.html

two configurations you might want to have a go with:
a) remove both wireless-essid and the wireless-key lines from the interfaces file
b) set wireless-essid to "any" and remove the wireless-key line

see if that changes anything.
i'm afraid i can't do much more.
cheers