o
7. port. Determine whether the keyboard
lights flash at POST or the NumLock LED illuminates. If not, change port connections.
Mode
No dia n
1. Be sure the cables are plugged in as specified in the modem documentation.
rectly to the wall jack, and then test the line for a dial tone.
o dial tone is detected, the phone line is not working. Contact the local telephone company and
No res n
1. is set to the COM port to which the modem is connected.
exists.
em to factory-default settings.
website (http://www.hp.com
If the problem no longer occurs, the original input device is defective. Replace the device.
Be sure the keyboard or mouse is connected to the correct
8. Be sure the keyboard or mouse is clean.
m problems
l to e exists
Action:
2. Connect a working telephone di
3. If n
arrange to correct the problem.
po se occurs when you type AT commands
Action: Reconfigure the COM port address for the modem.
Be sure the communications software
2. Check IRQ settings in the software and on the modem to be sure no conflict
3. Type AT&F at the command prompt to reset the mod
4. Be sure you are in terminal mode and not MS-DOS mode.
5. Refer to the HP ) for a complete list of AT commands.
et the echo command to On using the AT command .
Data is displayed as garbled characters after the connection is established
Actio
2.
orrections where needed.
Modem o
tio
answer.
ering machine.
AT commands are not visible
Action: S ATE
n:
1. Be sure both modems have the same settings, including speed, data, parity, and stop bits.
Be sure the software is set for the correct terminal emulation.
a. Reconfigure the software correctly.
b. Restart the server.
c. Run the communications software, checking settings and making c
d. Restart the server, and then reestablish the modem connection.
d es not answer an incoming call
nAc
1. Enable the auto-answer option in the communications software.
:
2. Be sure an answering machine is not answering the line before the modem is able to
a. Turn off the answ
Troubleshooting 70
