On Sat, September 8, 2007 6:36 pm, James G. Sack (jim) wrote:
> Lan Barnes wrote:
>> I want to add ports to my wireless router. Both wireless and switch have
>> been tested and work.
>>
>> This doesn't work:
>>
>> Cable modem
>>     |
>>     V
>> d-link's "uplink" port
>> ***** (wireless now works)
>> A d-link regular port
> ......|.......................let's call this Dm (Dlink port m)
>>     |
>>     V
> ......|.......................let's call this Su (Switch's uplink port)
>> Switch's uplink port
>> *****
>> Switch's regular ports
>>     |
>>     V
>>.....|......................let's call this C (client port)
>> Anything (cat 5) DOESN'T work
>>
>> Is there something I'm missing here?
>>
>
> It strikes me that this should have worked.
>
> When client C is plugged directly into the dlink at Dm, does the client
> work ok? Don't proceed unless this works. Maybe try different cables?
>
> When switch Su is plugged into Dm, do you get link lights at both ends?
> If not, is there a regular/crossover slide-switch on the switch (near
> the uplink port) or perhaps 2 separate connectors to choose from. Newer
> switches have autosensing ports, and often don't even bother marking any
> port as "uplink", because it doesn't matter. If you do not have one of
> these autosensing switches, then it's important to pay attention to
> whether you are using crossover or regular cable for the uplink.
> Crossover cable would go into the non-crossover connector (and straight
> cables into the crossover connector).
>
>   Another way of putting this, is that the only difference between a
>   "normal" and an "uplink" port is that the uplink port has internal
>   crossover wiring just so you don't need to use a crossover cable.
>
> Once the switch is working (if there aren't any link lights to use as
> clues, you just have to be sure of the 'crossover-ivity') -- then plug
> the client into the switch and look at the link lights. If not ok, try
> other cables.
>
> Regards,
> ..jim
>
>

Umm ... guys, as already stated, I'm not working on this any more. I have
exactly enough ports for my cat 5 needs now. I already own a swell switch
and don't need to buy one. I've concluded that the failing wifi on the new
laptop is in the laptop, and is either a bad wifi card or a
configuration/OS problem -- and that it's not mine to diagnose.

I'm _reading_ this thread and _appreciating_ the suggestions, but I'm not
going to do anything about it.

Next week I'll take the laptop to Alex's school's IT guy and ask him to
diagnose and/or configure it.  If it's HW, then back to Fry's.

You are free to continue or to drop the thread, as you wish. And again,
thanks.

-- 
Lan Barnes

SCM Analyst              Linux Guy
Tcl/Tk Enthusiast        Biodiesel Brewer


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