15-18 Troubleshooting
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Writer: Carey Gregg Saved by: Carey Gregg Saved date: 05/08/00 12:06 PM
Part Number: 170706-002 File name: Ch15.doc
Solving Modem Problems Continued
Problem Possible Cause Solution
Characters are
garbled/transfer rates are
slow.
There is noise in the
telephone line.
Request a telephone line
filter from your local
telephone service provider.
Settings on the sending
and receiving modem do
not match.
Use the same parity,
modem speed, word
length, and stop bits
settings on both modems.
The error correction feature
of your modem software is
interfering.
Disable error correction
(&K0) and data
compression (&M0) using
AT commands.
NOTE: To access AT
commands and instructions
for using them, select
Start
àCompaq Information
Center
àModem
Commands.
Modem loses connection. Call Waiting may be
interfering with
the connection.
Disable Call Waiting before
dialing.
For information about
disabling Call Waiting,
consult your operating
system documentation.
To obtain the disable call
waiting code for your
dialing area, consult your
local telephone service
provider.
Another device on your
telephone line may be
causing interference.
Hang up an extension
telephone and disconnect
any other devices that may
be using the same
telephone line, then redial.
Hibernation was initiated;
the computer reached a
low-battery or critical
low-battery condition.
1. Restore power,
if necessary.
2. Slide the power switch
to exit Hibernation,
if necessary.
3. Restart the
communications
software application.
Your service provider may
have an inactivity timeout.
Ask your service provider if
idle time on the line
terminates the connection.
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