[TriLUG] Linux Host connectivity issue

[William Sutton via TriLUG]

what is the static vs dhcp situation?  is it possible that something else 
is grabbing the same address via dhcp?

William Sutton

On Wed, 28 Feb 2018, Matt Flyer via TriLUG wrote:

> I am experiencing a strange network issue and I am not sure how to go
> about diagnosing the cause.  I have a Linux box running Ubuntu 16.04.
>  It is in a vlan with with a gateway IP address.  The network is wired
> and the wireless interfaces are disconnected.  The ethernet line comes
> into a local switch on my desk and from there to the PC.  
>
> Intermittently I am losing (Internet) connectivity and when this
> happens I can't ping the gateway but I can, at least almost always,
> successfully ping other hosts in the vlan. I tried removing this
> switch and plugging directly into the wall jack.  No difference.
>
> My initial thought was that there is a problem with the main switch or
> router, which I don't have access to, but here is where it gets
> interesting.  Nobody else is experiencing trouble, nor am I seeing the
> problem if I boot the PC up in Windows instead of Linux.  Also, while I
> am unable to ping the gateway with this machine, I can ping it with
> another (windows) machine plugged into the same local switch on my
> desk.
>
> In other words, it appears to be an issue with the software (?) on this
> PC, but I don't know what or why.
>
> Any suggestions?
>
>
> -- 
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