Re: [PLUG] How to diagnose poor Ethernet throughput with Mint

[Frank via plug <plug@lists.phillylinux.org>]

Thanks, Walt.

Yes, the problem turns out to be the new cable (cat 6-unshielded) I had 
my electrician run.  I ran a very long Ethernet cable through my house 
and got the 1 Gb/s connection I was expecting. My electrician hasn't 
come back to re-run it yet, but after doing some reading, I suspect that 
problem is that we ran it right up against a lot of electrical lines in 
my basement.  Neither of us knew it was a problem.  I'm guessing that 
after I have him move it, it'll work fine.

I wasn't able to access the National Electric Codes, but random Internet 
web sites say the NEC code is to keep unshielded ethernet anywhere 
between 2" and 8" from parallel electrical lines, but it can cross 
electrical lines at the perpendicular without much of a problem.

Thanks for the replies (that I wasn't able to reply to).

- Frank


On 2/6/25 8:42 PM, Walt Mankowski via plug wrote:
> Hi all,
>
> I've been chatting with Frank offline because he was having some
> problems with the mailing list which have now been resolved. In the
> interim he wasn't receiving any of the replies to his post. He
> reports that the problem was indeed a bad cable, and he's now replaced
> it.
>
> Walt
>
> On Mon, Jan 27, 2025 at 03:50:15PM -0500, Casey Bralla via plug wrote:
> > I had trouble with speed on an Ethernet connection once.  it turned out that
> > several pairs on the CAT-5 cable were bad.  It still worked, but slowly.  I
> > was able to visually see the problem (bad injection molding of the plug),
> > but you may need a cable tester to be sure.
> >
> >
> > On 1/27/25 3:43 PM, Frank via plug wrote:
> > > I'm running Linux Mint on most of my computers.  I've just had an
> > > Ethernet wire run from one of my workstations to my router.  I'm only
> > > getting 100 Mb/s throughput as per the system tools, even though all of
> > > my hardware is gigabit.  I know how to diagnose this in Windows, but no
> > > idea where to begin in Mint.  How can I figure out where the problem is?
> > >
> > >
> > > Thanks, Frank
> > >
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