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MC9000-G Product Reference Guide for Embedded Windows® CE .NET
13-16
MDM9000 Modem Module
Table 13-8. Troubleshooting the MDM9000 Modem Module
Symptom Possible Cause Action
Mobile computer is not
communicating through
the modem.
The modem cable is not fully
connected.
Connect the modem cable securely to both the modem and
the telephone jack.
Modem is not securely connected
to the mobile computer.
Reconnect the modem to the mobile computer.
Communication software is not
installed or configured properly.
Set up the communication software.
Problem in the telephone lines. Connect a conventional telephone and dial the remote
modem to verify the telephone lines are functioning. If the
remote modem does not answer the call and emit
answering tones, contact the remote System
Administrator.
Mobile computer’s battery is low or
discharged, which shuts off power
to the modem.
Install a charged battery in the MC9000, or use an external
DC power adapter to recharge the battery.
ActiveSync fails. A partnership was not established
with the host computer.
Establish a partnership with the host computer.
Host computer is not selected in
the ActiveSync window on the
mobile computer.
Select a host computer in the ActiveSync window, and
perform setup.
Modem RAS connection not
allowed by host computer.
Select RAS connection in the host computer (File -
Connection Settings window). Refer to the ReadMe files
located in the Microsoft ActiveSync folder on the host
computer.
Mobile computer or modem was
disconnected from the telephone
line while ActiveSync was in
progress.
Disconnect the modem cable for 30 seconds to hang up
the local telephone connection. Close any open windows
on the mobile computer and any modem connections.
Synchronization occurred, but the
session is configured to close
immediately after synchronization
is complete.
Verify the synchronizing setting.