Do your hubs have uplink ports? If so, use them. If not, buy new hubs.

On Mon, 2001-12-10 at 21:47, Mike Bresnahan wrote:
> I'm hoping someone can help me with some home networking.  My apartment is
> pre-wired with CAT5 cables.  There are 2 RJ45 connections in the living room
> and one in each bedroom upstairs.  All 4 RJ45 have cables attached to them
> that lead to the closet downstairs.  In the closet are 4 RJ45 connectors on
> the opposite end of the cables.  In one of the bedrooms are 3 PCs and a
> Cisco 675 DSL modem and there will be one PC downstairs.  I have 10 7' CAT5
> cables, 1 8 port 10/100 dual speed, and 1 4 port 10baseT hub.  How can I
> make this network work?  I tried simply putting the 4 port hub in the
> closet, connecting it to the 4 RJ45 connections.  This works fine as long as
> I don't introduce the 2nd hub, however this configuration only allows one of
> the 4 nodes in the bedroom to be connected because there is only one jack in
> the bedroom.  So I tried connecting the 8 port hub into the wall jack in the
> bedroom and connecting the 4 nodes to it, but this rendered my network
> useless.  The machine downstairs cannot see the DSL router or any of the
> other PCs.  Can I not connect 2 hubs together like that?  If not, how do I
> make my network work?  Do I need a switch?  A router?
> 
> Mike
> 
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