Comment 2 for bug 387035

I don't have an account for there, and not sure if my problem is the same, so I'll try to fully describe it.

I have a laptop (Acer aspire 5612WLMi) and using currently Jaunty. Apart from the internal NIC (eth0), for internet I use a network interface via usb (it's a kingston port duplicator with some extra USB connections, so I get "all-usb-in-one-connection"), and it's eth1. When using NM (Network Manager), and without any hibernation, etc in between, when the dhcp lease expires, NM seems to ignore. These are the last logs about this:

Aug 24 20:03:28 oscar-laptop dhclient: DHCPREQUEST of 192.168.1.33 on eth1 to 192.168.1.1 port 67
Aug 24 20:03:28 oscar-laptop dhclient: DHCPACK of 192.168.1.33 from 192.168.1.1
Aug 24 20:03:28 oscar-laptop dhclient: bound to 192.168.1.33 -- renewal in 40125 seconds.
Aug 24 20:03:28 oscar-laptop NetworkManager: <info> DHCP: device eth1 state changed bound -> renew
Aug 24 20:03:28 oscar-laptop NetworkManager: <info> address 192.168.1.33
Aug 24 20:03:28 oscar-laptop NetworkManager: <info> prefix 24 (255.255.255.0)
Aug 24 20:03:28 oscar-laptop NetworkManager: <info> gateway 192.168.1.1
Aug 24 20:03:28 oscar-laptop NetworkManager: <info> nameserver '80.58.61.250'
Aug 24 20:03:28 oscar-laptop NetworkManager: <info> nameserver '80.58.61.254'

Which means that dhclient is aware of renewing and seems to renew properly. The leases are registered in the lease file:

# cat /var/lib/dhcp3/dhclient-eth1.lease
lease {
  interface "eth1";
  fixed-address 192.168.1.33;
  option subnet-mask 255.255.255.0;
  option routers 192.168.1.1;
  option dhcp-lease-time 86400;
  option dhcp-message-type 5;
  option domain-name-servers 80.58.61.250,80.58.61.254;
  option dhcp-server-identifier 192.168.1.1;
  renew 1 2009/08/24 18:03:28;
  rebind 2 2009/08/25 04:32:44;
  expire 2 2009/08/25 07:32:44;
}
lease {
  interface "eth1";
  fixed-address 192.168.1.33;
  option subnet-mask 255.255.255.0;
  option routers 192.168.1.1;
  option dhcp-lease-time 86400;
  option dhcp-message-type 5;
  option domain-name-servers 80.58.61.250,80.58.61.254;
  option dhcp-server-identifier 192.168.1.1;
  renew 2 2009/08/25 05:12:13;
  rebind 2 2009/08/25 15:03:28;
  expire 2 2009/08/25 18:03:28;
}

As a comment, though eth1 seems correctly configured, I'm not able to ping the gateway, and anything related to eth1 times out (dhclient, mii-tool,...)

I've been unable to renew via restarting NM nor "dhclient eth1". After trying any of these, all routes are lost. The only way I've found to renew the IP is to unplug and plug again the usb interface.

If this is a duplicate or I should open a new different bug, please let me know.