Troubleshooting And Online Help Resources - US Robotics Sportster Operating Instructions Manual

T
ROUBLESHOOTING AND
PROBLEM DIAGNOSIS
The computer or Your modem might not
software will not be turned on.
recognize the
modem.
You may not be entering
modem commands in the
proper manner.
If you are using an
external modem, the
COM port may not be
enabled.
You may have a COM
port/IRQ conflict.
O
NLINE
POSSIBLE SOLUTION
Make sure the modem is turned on. The power switch is on top of external
modems. The CS light on the front panel should be lit. If you installed an
internal modem, it should power up when the computer is turned on.
Type in all upper case (AT) or lower case (at).
Refer to your computer's manual for information concerning enabling COM
ports (usually involves altering the bios settings, motherboard jumpers, and
the operating system).
WINDOWS 95 USERS: Uninstall the modem from your computer. In Device
Manager, determine what COM port and IRQ settings are free on your system.
Set the jumper shunts on your modem's jumper pins to these free settings,
using the diagrams below as a guide. If no IRQ setting is available, you may
need to move a device off of an IRQ in order to free it for use by your modem.
COM 1
COM 2
COM 3
COM 4
H R
ELP ESOURCES
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