[TriLUG] OT: Powerline networking recommendation

[Don Jerman via TriLUG]

Hint: if your ground potential isn't zero call an electrician.  Residences
should be on a common ground.

I had a heck of a time convincing phbs that this was a thing when I was
running a coax network that has been string between two old buildings back
in the last century... Every storm would knock out a pair of repeater ports
and two or three workstations.  They just kept replacing stuff and assuring
me that both buildings were grounded. Eventually we got a properly isolated
line connected and the problems went away.... But by that time I was on
another assignment.

On Thu, Sep 17, 2015, 2:52 PM Matt Flyer via TriLUG <trilug at trilug.org>
wrote:

> When you do the extension cord test you might also want to measure to see
> what the difference in ground potential is set the two outlets for
> curiosity sake. While it doesn't apply so much to the Ethernet over the
> power lines, it does raise the issue of ground potential being different in
> separate parts of he house or building, which can damage stuff if you try
> to connect it via things like serial cables that are ground referenced.
>
> Sent from my iPad
>
> > On Sep 17, 2015, at 2:11 PM, Ed Blackman via TriLUG <trilug at trilug.org>
> wrote:
> >
> > Thanks for the advice and experiences!  I'm going to try using a couple
> of spare Wifi routers as a bridge since I have them gathering dust anyway,
> but will also get out the extension cord and multimeter to check whether
> the target outlets are on the same leg.
> >
> >
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