Wireless ethernet not getting DHCP lease on boot

[mantazz]

I recently installed Kubuntu on my laptop, which has two ethernet interfaces (excluding lo0). The first one is a wired connection which I seldom use. Interface eth1 is a wireless that operates correctly, except that it never gets a DHCP lease on boot. Every time I boot I have to give the command

sudo dhclient eth1

to get an IP address for the wireless.
I have read a few recommendations on the issue but none have made any difference so far. Most recently I used apt-get to uninstall both network-manager and network-manager-kde and then put the following lines into my /etc/networks/interfaces

iface eth1 inet dhcp
wireless-essid linksys

But this made no difference.
What should I try next?

[Snowhog]

Re: Wireless ethernet not getting DHCP lease on boot

Your /etc/network/interfaces file should (normally, on a 'vanilla' network setup) only have the following entries:

auto lo
iface lo inet loopback

[mantazz]

Re: Wireless ethernet not getting DHCP lease on boot

I tried commenting out the lines regarding eth1 in that file, and that did not work, either. I suspect I am missing something beyond that file, but I don't know where.

Can't I just invoke dhclient for eth1 in a file in /etc/rc.d ? That would solve my problem and then I wouldn't have to worry about the /etc/networks/interfaces file.

[Snowhog]

Re: Wireless ethernet not getting DHCP lease on boot

Since making the change, have you restarted?

[mantazz]

Re: Wireless ethernet not getting DHCP lease on boot

Since making the change, have you restarted?

Yes I have booted both with and without those lines active in /etc/networks/interfaces. In both cases I have to manually invoke

sudo dhclient eth1

In order to get a DHCP license for my wireless card.

[Ivanp]

Re: Wireless ethernet not getting DHCP lease on boot

Try installing wicd. It invokes DHCP automatically. On my PC in this Kubuntu release I had issues with knetwork manager or whatever it is called now and since I have switched to wicd I have no problems. On my laptop, on the other hand, my wifi is sometimes not recognised by wicd but my guess is it is not problem of wicd but rather of ath0 which is in my case wireless interface. Nevertheless I would recommend you to give wicd a try.

[mantazz]

Re: Wireless ethernet not getting DHCP lease on boot

I am not familiar with wicd - how do I install it? Apt-get did not find Wicd or wicd.

[Ivanp]

Re: Wireless ethernet not getting DHCP lease on boot

I am not familiar with wicd - how do I install it? Apt-get did not find Wicd or wicd.

Follow instructions on http://wicd.net/download.php section "Installing Wicd in Ubuntu"