Solving Modem Problems Continued

Problem

Possible Cause

Solution

 

 

 

Modem does not

Another device on

Hang up an extension

connect

your telephone line

telephone and

 

may be causing

disconnect any other

 

interference.

devices that may be

 

 

using the same

 

 

telephone line, then

 

 

redial.

 

 

 

 

The telephone line

The 56K protocol

 

does not support 56K

requires that the

 

implementation.

telephone line contain no

 

 

more than one analog-to-

 

 

digital conversion.

 

 

Try connecting from an

 

 

alternate site.

 

 

 

 

There is noise on the

Use another telephone

 

telephone line.

line.

 

 

The 56K protocol of

Change the Hang-up

 

an internal modem will

Delay S Register: At the

 

fall back to lower

command line in terminal

 

speeds if the

mode, type ATS10=150,

 

telephone line is too

then press Enter.

 

noisy for a high-speed

NOTE: This command

 

connection.

causes the modem to

 

 

 

 

take longer to disconnect

 

 

even if there is no noise

 

 

on the line.

 

 

 

Fax transmissions

Another

Close the other

do not work

communications

communications

 

software application is

application.

 

open.

 

 

 

 

 

 

Modem is receiving

Connect the computer to

 

inadequate power.

external power

 

 

or

 

 

 

If the computer must run

 

 

from a battery pack,

 

 

■

Make sure the

 

 

 

battery pack is fully

 

 

 

charged.

 

 

■

Clear all power

 

 

 

conservation

 

 

 

selections.

 

 

 

 

Continued

16-16 Troubleshooting