Troubleshooting
T-7
Modem
1. Verify that the modem line is connected to a RJ-11 phone jack but not to a
RJ-45 network port.
2. Verify that the modem line is connected directly to a wall outlet.
Eliminate any devices like a Telephone, answering machine, surge
protector, or line splitter. Test with another phone cable and a different wall
outlet, if available.
3. Verify the presence of a strong dial tone on the same telephone line that
modem is attempting to dial out on by connecting a telephone handset.
Note:
A no dial tone error message may be due to the software not handling
a certain dial tone rather than a specific hardware fault. Around the
world there is a variance in the signal quality of the dial tone which
causes a report of no dial tone detection. Disable the dial tone
detection to correct no dial tone detected by modem error.
4. Verify that the latest driver has been installed properly.
5. Verify that no other software that accesses COM ports is running when the
operating system loads (for example: fax software, synchronizing software
for handheld devices, communication software, or external pointing devices
that require a COM port).
6. Verify that the internal modem is enabled properly in the system.
7. Verify that the default resources are set for the Digital Signal Processor
(DSP) and the modem.
8. Verify that the default settings are the same in Microsoft Windows Device
Manager.
