No network when docking

[Asif Iqbal]

On Wed, Oct 8, 2014 at 4:30 AM, Karl Auer <kauer at biplane.com.au> wrote:

> On Tue, 2014-10-07 at 20:30 -0700, NoOp wrote:
> > On 10/07/2014 02:10 PM, Asif Iqbal wrote:
> > > I am failing to get the network work when set it to docking. The vga
> > >  and usb kbd and usb mouse works fine.
>
> The log you sent shoes that Network Manager is doing it's job perfectly
> - but cannot get an IP address on eth0. I don't think it is Network
> manager's fault.
>
> What exactly does it mean to "set it to docking"?
>
>
> > > I removed the network and connected to the laptop directly while on
> dock
> > > and still no success.
>
> Not sure what kind of docking station it is, but if it's the
> model-specific thing with a special connector, it probably disables the
> onboard NIC.
>
> > > I undocked the laptop and plugged the same network cable and it is
> > > working fine.
>
> That says three things:
>
> a) the DHCP server is working fine
> b) the onboard NIC (and associated config) is working fine
> c) the network cable is OK
>
> That pretty much leaves the docking NIC and/or whatever happens whe you
> dock as the sources of the problem.
>
> > $ sudo killall NetworkManager
> > (mind the caps)
> > and then see if it works.
>
> That will not help. Don't do that. You could try *restarting*
> NetworkManager thusly after docking the laptop:
>
> sudo restart network-manager
>
> ... but I have no idea whether it will help ;-)
>
> Regards, K.
>
>

Well, these are all good suggestions. However, this morning I docked my
laptop,
to the HP docking station that came with it. It came back from suspend and
got connected to the eth0 after seems to be unnecessary fighting with wlan0
few times. Here is the output of syslog  http://paste.ubuntu.com/8521255/





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-- 
Asif Iqbal
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