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T
ROUBLESHOOTING AND
O
NLINE
H
ELP
R
ESOURCES
76
PROBLEM
DIAGNOSIS
POSSIBLE SOLUTION
The computer or software will
not recognize the modem.
If you are using an external
modem, the modem might not
be turned on.
You may not be entering
modem commands in the
proper manner while in
terminal mode.
You may have a COM
port/IRQ conflict.
If you are using an external
modem, the COM port may
not be enabled.
The power switch is located on the back of the modem by the phone jacks.
When in terminal mode, type in all upper case (AT) or all lower case (at).
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 on
page 13
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. Make sure you have the correct COM port and IRQ
settings in your software and/or in the Windows Device Manager.
Refer to your computer’s manual for information concerning enabling COM
ports. This process usually involves altering the BIOS settings, motherboard
jumpers, and/or the operating system’s settings.