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12-14
MC9000-K/S for Embedded Windows® CE .NET Product Reference Guide
MDM9000 Modem Module
Table 12-8. Troubleshooting the MDM9000 Modem Module
Symptom
Mobile computer is not
communicating through
the modem.
ActiveSync fails.
Possible Cause
The modem cable is not fully
connected.
Modem is not securely connected
to the mobile computer.
Communication software is not
installed or configured properly.
Problem in the telephone lines.
Mobile computer's battery is low or
discharged, which shuts off power
to the modem.
A partnership was not established
with the host computer.
Host computer is not selected in
the ActiveSync window on the
mobile computer.
Modem RAS connection not
allowed by host computer.
Mobile computer or modem was
disconnected from the telephone
line while ActiveSync was in
progress.
Synchronization occurred, but the
session is configured to close
immediately after synchronization
is complete.
Action
Connect the modem cable securely to both the modem and
the telephone jack.
Reconnect the modem to the mobile computer.
Set up the communication software.
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.
Install a charged battery in the MC9000, or use an external
DC power adapter to recharge the battery.
Establish a partnership with the host computer.
Select a host computer in the ActiveSync window, and
perform setup.
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.
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.
Verify the synchronizing setting.
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