Re: Odd network problem!

[Joseph Heenan <joseph-l@xxxxxxxxxxxx>]

That sounds pretty freaky.

Not sure I'm going to come up with anything more insightful than you'll
have already thought of, but here's a few options:

1. Replace the cable, possibly with STP
2. Replace the switch
3. Replace the router
4. Replace the vacuum cleaner
5. Add mains filters before the switch/router

Is there any chance there's a third device connected to the switch that
is somehow involved?

Does connecting another switch in place of the netgear bring up the link
okay?

The fact that connecting a laptop makes a difference is weird. Did you
eliminate that it's not just a timing thing? ie. if you leave everything
off for as long as it would take you to do all 6 steps does it recover?
I presume "reboot" means a hard power cycle, with at least 15
seconds
without power?

Joseph

On 18/02/2013 23:00, Rob Iles wrote:
> Hi All,
>
> I'm looking to pick your collective brains!
>
> I have a BT Home Hub 3. Plugged into this (GigE port) is a ~15Metre
Cat5
> cable that runs to a Netgear 10/100/1000 switch. All works fine...
>
> Until we use one particular vacuum cleaner (Henry). Regardless of
which
> power socket the cleaner is plugged into, using it causes the link
light on
> the switch to turn off. Rebooting switch / router /modem (BT Infinity)
do
> not bring it back (Cleaner unplugged). This is 100% repeatable, and
occurs
> on 1000 & 100 ports.
>
> The only way to bring it back up (and this works every time) is to:
>
> 1. Unplug network cable from switch.
> 2. Unplug other end from router.
> 3. Plug laptop directly into router with a patch lead, pause, and it
gets a
> connection and DHCP lease.
> 4. Disconnect laptop, reconnect 15Metre cable into laptop.
> 5. Reconnect laptop to other end of 15Metre cable (skipping this step
> doesn't work). It gets a lease.
> 6. Disconnect laptop, plug same cable into switch, and the port lights
up
> and all connected kit starts working again!
> WiFi is unaffected throughout, so it's not the router freezing.
>
> Any suggestions as to why this may be happening, and how to resolve
it?
>
> Eagerly awaiting any & all suggestions :-)
>
> Rob
>
> --
> Rob Iles
> Harmony Automation (www.domialifestyle.com)
> myBBS (www.mybbs.co.uk)
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
>
> Yahoo! Groups Links
>
>
>



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