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Chapter 7 - Troubleshooting
41
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)
CC
CC
C
hapterhapter
hapterhapter
hapter
7 - 7 -
7 - 7 -
7 -
TrTr
TrTr
Tr
ouboub
ouboub
oub
leshootleshoot
leshootleshoot
leshoot
inging
inging
ing
Your modem was thoroughly tested at the factory before it was shipped. If you are unable to make a
successful connection, or if you experience data loss or garbled characters during your connection, it is
possible that the modem is defective. However, it is more likely that the source of your problem lies
elsewhere. The following symptoms are typical of problems you might encounter:
• None of the LEDs light when the modem is on.
• The modem does not respond to commands.
• The modem cannot connect when dialing.
• The modem disconnects while online.
• The modem cannot connect when answering.
• File transfer is slower than it should be.
• Data is being lost.
• There are garbage characters on the monitor.
• The modem doesn’t work with Caller ID.
• Fax and data software can’t run at the same time.
If you experience problems, please check the following possibilities before calling Technical Support (see
Appendix C).
NoNo
NoNo
No
ne ofne of
ne ofne of
ne of
t t
t t
t
he Indihe Indi
he Indihe Indi
he Indi
cc
cc
c
aa
aa
a
toto
toto
to
rs Lighrs Ligh
rs Lighrs Ligh
rs Ligh
tt
tt
t
When you turn on the modem, the LED indicators on the front panel should flash briefly as the modem
runs a self-test, and the liquid crystal display (LCD) should light. If the LEDs and LCD remain off, the
modem is probably not receiving power.
• Make sure the modem’s power switch is on, especially if you normally turn the modem on by turning
on a power strip.
• If the modem is plugged into a power strip, make sure the power strip is plugged in and its power
switch is on.
• Make sure the transformer module is firmly connected to the modem and to the wall outlet or power
strip.
• If the power strip is on and the modem switch is on, try moving the transformer module to another
outlet on the power strip.
• Test that the outlet is live by plugging another device, such as a lamp, into it.
• The modem or transformer module may be defective. If you have another Multi-Tech modem, try
swapping modems. If the problem goes away, the first modem or transformer module may be
defective. Call Technical Support for assistance.
CAUTION: Do not under any circumstances replace the transformer module with one designed for
another product; doing so can damage the modem and void your warranty.