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[talat <mahmoodtc@xxxxxxxxx>]

** Changed in: network-manager (Ubuntu)
       Status: New => Incomplete

** Also affects: wired (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: network-manager (Ubuntu)
       Status: Incomplete => Fix Committed

** Changed in: network-manager (Ubuntu)
     Assignee: (unassigned) => talat (mahmoodtc)

** Changed in: network-manager (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1387631

Title:
  No ethernet link with port replicator

Status in “network-manager” package in Ubuntu:
  Fix Released
Status in “wired” package in Ubuntu:
  New

Bug description:
  The wired ethernet connection works properly in the common way.  But
  with the use of a port replicator this becomes weird.

  When I dock-in while the computer is running, I get no ethernet link.

  /var/log/syslog shows for this:

  Oct 30 13:06:44 srenW540 NetworkManager[18816]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds)
  Oct 30 13:06:44 srenW540 dhclient: Internet Systems Consortium DHCP Client 4.2.4
  Oct 30 13:06:44 srenW540 NetworkManager[18816]: <info> (eth0): DHCPv4 state changed nbi -> preinit
  Oct 30 13:06:44 srenW540 dhclient: DHCPREQUEST of 9.152.205.151 on eth0 to 255.255.255.255 port 67 (xid=0x3d811fa9)
  Oct 30 13:06:50 srenW540 dhclient: message repeated 2 times: [ DHCPREQUEST of 9.152.205.151 on eth0 to 255.255.255.255 port 67 (xid=0x3d811fa9)]
  Oct 30 13:06:57 srenW540 dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 (xid=0x5e7a1a94)
  Oct 30 13:07:00 srenW540 dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7 (xid=0x5e7a1a94)
  Oct 30 13:07:07 srenW540 dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8 (xid=0x5e7a1a94)
  Oct 30 13:07:15 srenW540 dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 21 (xid=0x5e7a1a94)
  Oct 30 13:07:29 srenW540 NetworkManager[18816]: <warn> (eth0): DHCPv4 request timed out.
  Oct 30 13:07:29 srenW540 NetworkManager[18816]: <info> (eth0): canceled DHCP transaction, DHCP client pid 20276


  The ONLY possible way to  get an ethernet link with the port
  replicator is this:

  1. Shut down notebook and dock-out
  2. Plug off the port replicator's AC (!)
  3. Wait a few seconds
  4. Dock-in and plugin-in the replicator's AC
  5. Boot

  Now, the ethernet link will be established. BUT: If you dock-out and dock-in now, the link gets not established as well.
  This is extremely uncomfortable and the use of a port replicator is a mess with this.

  Interface DownUp when the link can not be established does not work as well. 
  Please help!

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