Saitek III - Manual (Page 39)

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Descent ™ 3
Troubleshooting: DirectX 6.1 is required for direct serial games; we use
DirectPlay for serial games. If the error "Unable to connect." appears when
looking for games, you should quit the game on both machines and make
sure they can talk to each other. To do this, run a terminal program like
HyperTerminal on both machines – Windows 95 and 98 include
HyperTerminal in the Start menu, under Programs->Accessories. Configure
HyperTerminal on both machines to use the same settings, and type in the
window that appears. If you don't see the text that each other person is
typing, you aren't set up correctly. Make sure you have selected the correct
COM port, and make sure you are using a null-modem cable and not a
straight-through serial cable. (There are also null-modem adapters you can
attach to a straight-through serial cable.)
IPX
This option lets you join or start a game using the IPX network protocol to
play over a LAN. After choosing this option, you can join an IPX game in
progress by simply clicking the name of the game, then clicking "Join
Selected". To start a game, click "Start A New Game", then see "Starting A
New Game", below.
Troubleshooting: Run NETTEST.EXE if you experience problems with IPX
games. It may be able to detect certain problems with your network
configuration. Beyond that, it's beyond the scope of a game readme file to
attempt to troubleshoot an IPX network. Try using Windows' Network Control
Panel, and take it from there.
Direct TCP/IP
This option lets you join or start a game using the TCP/IP network protocol to
play over a LAN, or over the Internet. To join a game on your local LAN, just
choose this option, click the name of the game you want to join, and click
"Join Selected".
To join a game across the Internet via TCP/IP, first find out the IP address of
the server. Click in the text box under the words "Search For Games At
Address". Type in the IP address you wish to search (example: 127.0.0.127)
and press Enter. If a game is available at that address, click the name of the
game and click "Join Selected" to begin.