> This concerns the computers I maintain for my parents at their house.
> There are two computers -- one upstairs and one downstairs -- connected
> through a Diamond Homefree 1Mbps home phoneline network. It worked just
> fine up until yesterday.
> Yesterday, we put in a cable modem on the upstairs computer. It's
> connected through an ethernet card.
> Instantly, my phoneline network stopped working. The computers can no
> longer see one another on the network. I changed the workgroup name on
> the downstairs computer to match the new one on the upstairs computer
> Map Network Drive turns up nothing... In My Network Places both
> computers show themselves, but not the other.
> Is the problem that you can't run two different network connectors on
> the same computer?
> The operating system is Win98.
No, 2 network cards is OK.
Exactly the same thing happened to me. The cable connection appeared
to disable the existing network connection. The way I cured it was
just a lot of trial and error: I unplugged the cable to the modem and
then set about checking the properties of everything in Networks in
Control Panel (the cable modem connection appeared to have added a lot
of new properties to the TCP/IP protocol). Once the network was up
and running again I then put the modem cable back in. Then I
installed Internet Connection Sharing - the wizard did everything it
should and I then had two PCs able to access a broadband internet