Rod

First of all - take cold comfort that what you have done (as described)
should work. So here are some suggestions/ideas

- how far away from each other are the hubs? If they are more than about
80m apart (by cable length) then you are on the limits of 100M operation

- how good is your cable? Did you make the cable and, if so, did you adhere
to the Cat 5 standards for making the cable? ie. Number of twists undone at
each connector, use of cat 5 jacks etc. 10M Ethernet is a lot more
forgiving of these things than 100M. Given that the system works at 10M
this could be your problem - especially on a long cable run. Solution - get
a professionally made cable.

- do you get a link light on on either the switch or the hub or both? You
will obviously need link lights at both ends.

- given that both devices auto negotiate speed try setting one (if possible)
to a fixed speed of 100M. Sometimes the speed auto negotiate won't work if
both ends are doing it - although it should.

- crossovers or straight through shouldn't matter by the sounds of it. Auto
detection of this has been about for a while - the G4 Powerbooks have had
this from day 1.

Hope this helps

Cheers

Greg


on 7/1/03 3:23 PM, rkevill <[EMAIL PROTECTED]> at
[EMAIL PROTECTED] wrote:

> Hi all,
> 
> Having a problem connecting a new 10/100 "auto everything"
> Switch to my existing 10/100 hub.
> 
> My old 10/100 Hub (at one end of the house) has 8 ports, one of
> which is adjacent to an Uplink port which was used to connect
> between this hub and an older 10mb-only hub at the other end of
> the house.
> 
> I replaced the old 10mbs-only hub with the new Switch, and
> used the existing Cat5 cable to connect to the 10/100 hub, but
> the computers at each end could only see "local"
> computers/devices connected to the same "end" hub.
> 
> So, although each hub was working fine with the "local" devices,
> the two hubs were not talking to each other. A computer at one
> end could not see devices connected to the hub at the other end
> of the house.
> 
> Is that clear?
> 
> Anyway, I tried all sorts of combinations, even read the manuals
> for both hubs. As I understand it, the new Switch shouldn't care
> whether the connecting cable is a crossover or not, since it looks
> like it "auto-senses" everything, even crossovers?
> 
> I tried a few different ports, with and without crossover, to no
> avail.
> 
> So I'm now using the new switch with the old 10mbs-only hub,
> and it works fine, but of course only at 10mbs. The local end of
> the house works OK at 100mbs, but I only have 10mbs between
> each end of the house.
> 
> Any suggestions?
> 
> Thanks
> Rod
> 
> 
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