Re: [Hampshire] Networking hardware advice

Hi Owain,

I would definitely check the rating on the patch lead; I've had the same
thing (1000BaseTX renegotiating to 100BaseTX) when using Cat5 instead of
Cat5e or Cat6 cable.

I'd found that Cat5 was stable on a short run and thought "Cat5 -
supports Gig Ethernet, lovely" only to come a cropper when I moved the
computer 3 feet further from the switch, with a longer Cat5 lead :-)
Eventually, after crawling all over my system and trying different cards
etc, I twigged and swapped in a Cat5e lead. Magic!

Cheers

Brad

On 20/07/2025 11:39, rmluglist2--- via Hampshire wrote:
> Thanks folks - a few things for me to check there.
>
> -----Original Message-----
> From: Hampshire <hampshire-bounces@???> On Behalf Of Nick
> Chalk via Hampshire
> Sent: 20 July 2025 11:20
> To: Hampshire LUG Discussion List <hampshire@???>
> Cc: Nick Chalk <nick@???>
> Subject: Re: [Hampshire] Networking hardware advice
>
> On Sunday, 20 July, 2025, I wrote:
>> It sounds like there's a borderline out-of-spec cable in that run. One
>> or more of the switches is renegotiating to 100BaseTx from a higher
>> speed.
>
> I should have added:
>
> Next time it happens, check the link speed lights on each switch from the
> affected machine to the fibre router. That should show whether one link has
> renegotiated.
>
> Nick.
>
> --
> Nick Chalk ................. once a Radio Designer Confidence is failing to
> understand the problem.
>
>

--
Brad Macpherson