Comment 3 for bug 63209

I took the liberty to change the title to reflect the latest info you provided. hope it's okay. I cannot further triage this bug though (I don't have enough experience).

However, thanks to the latest info you provided, I found this report in bug # 61989
[quote]
When I try to connect to internet dhclient says to me send_packet:"Message too long".

I've found the problem and also the solution.
The problem is the wrong MTU parameter it is normally set to 64 while it should be around 1500.
Besides the file /etc/dhcp3/dhcp.conf has a wrong parameter "interface-mtu".

So the solution is remove the parameter "interface-mtu" in the file /etc/dhcp3/dhclient and set the parameter MTU to 1500 doing ifconfig eth0 mtu 1500.

Many users in Italy have this problem with their router,please see www.ubuntu-it.org in the section related to edgy.
[/quote]

please see if it helps. if it does help, pls add a comment to that bug. In that case, I will mark this as a dupe of bug # 61989.

thanks