Troubleshooting - US Robotics Sportster Flash x2 User Manual

Before the modems connect...
If your modem doesn't respond to any AT commands,
· Make sure the modem is on.
· Make sure you selected the correct COM port and IRQ in your
communications software, and/or in your Windows Control
Panel.
· Make sure the computer is in Terminal mode.
· Type in all upper (AT) or lower (at) case.
· There may be a COM port/IRQ conflict. Try alternative IRQ/
COM port settings.
If your modem displays double characters on your monitor,
· Both your modem's and software's local echoes are on and need
to be turned off by typing the command ATE0<Enter>.
If your modem doesn't go off hook to dial a number or doesn't
answer the phone,
· Make sure the phone lead is connected to the socket on the
modem labelled TELCO and to a phone wall socket.
· Review your software manual to see what DTR operations are
required.
· Make sure that your software has auto answer enabled.
If both modems exchange carrier signals but fail to establish a
communications link,
· Place the call again. The telephone company routes all calls,
even local calls, differently each time you call.
· Call a different modem to see if the problem persists.

Troubleshooting

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