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Troubleshooting: Xircom® CardBus Modem User's
Guide
Troubleshooting
Guidelines • Diagnostic Software
• Windows 98 Troubleshooting
• Windows NT Troubleshooting
Troubleshooting
Guidelines
 |
This troubleshooting information is
intended for users who have run into difficulties after having completed
the appropriate setup and installation procedures
for their product and operating environment. |
Additional Sources of Information
See your Dell system documentation for
information on how to contact Dell Customer Support, or visit www.dell.com.
Diagnostic
Software
Xircom provides a modem diagnostic utility
to test several functions of the CardBus Modem 56 WinGlobal.
Running the Diagnostic Utility
-
Verify that the CardBus Modem 56 WinGlobal
has been installed and configured to work with
your version of Windows.
-
Be sure that you have run SETUP.EXE at the
end of the installation procedure and restarted the system to install the
Xircom utilities.
-
Click Start, Programs, Xircom Utilities, and
select Modem Test.
-
Follow the onscreen instructions provided.
Windows
98 Troubleshooting
Modem Installation Troubleshooting
-
Modem initialization errors occur when you
are attempting to dial out using a communications application.
-
Connection fails.
Possible Solutions
-
It may be necessary to define a modem type
within your communications application. If the Xircom modem is not listed,
choose a "Generic Hayes compatible" device.
-
If your computer is equipped with an infrared
communications port, you may need to disable this port. These ports often
use COM port resources required for other communications devices. Disable
the infrared port both in the computer's CMOS or BIOS setup program and
the Windows 95 Device Manager, as follows:
-
Some computers use a hardware setup utility
to configure the infrared port in the BIOS. See your computer documentation
for instructions on how to disable it.
-
To disable the infrared communications port
in Windows 95, go to the Device Manager tab under System in the Control
Panel.
-
Double-click the Ports (COM & LPT) entry
and the IR Serial Port entry. Remove the check mark under "Device Usage."
-
Check the "Disable in this Hardware Profile"
option to disable the device.
How to Use the Windows 98 Modem Diagnostics
Tool
-
In the Modems option in Control Panel, click
Diagnostics.
-
In Diagnostics properties, highlight the COM
port associated with the Xircom modem and click the More Info button. This
causes Windows to send commands to the modem, read responses from the modem,
and display information about the modem and its COM port. The Port Information
box should display the following information:
-
The IRQ and I/O addresses of the modem's COM
port. These should match the physical configuration of the port or modem
adapter.
-
Modem responses to various AT commands. The
Xircom modem may return ERROR for some AT commands that are not supported.
This does not indicate a failure.
-
A log file can be useful to help identify
modem problems by recording modem commands and responses. Windows 98 creates
a log file by default in the Windows directory, using a filename based
on the modem device identifier, with a .LOG extension, such as "Xircom_CardBus_modem.log"
(or a shortened version in MS-DOS). To continue adding information to the
log file, place a check mark in the Append to Log option box in the Advanced
Connection Settings window (use the path Control Panel, Modems, Properties,
Connection, Advanced).
Windows
NT Troubleshooting
Verify that you have Windows NT 4.0 Service
Pack 5 (SP5) installed.
If you have difficulties using the modem
after installation
with Softex support, try the following troubleshooting procedure:
-
Open the system tray icon for the Softex PC
Card Controller program
-
Click the "Settings" tab, and click Configure
Modems.
-
At the Configure Modem PC Cards window, write
down the COM ports that are not grayed-out, then click Cancel. Click Cancel
for the Softex PCCard Controller program.
-
Click Start, Settings, Control Panel, then
double-click the Modems icon. In the Modems Properties window, click Add.
-
At the Install New Modem windows, place a
check in the "Don't detect my modem..." checkbox, and click Next.
-
Click Have disk.
-
Enter the location of the Xircom CD-ROM (for
example, D:\), and click OK.
-
Click Next.
-
Refer to the list of ports you recorded from
the Configure Modem PC Cards window earlier, and select the highest port
on the list (COM5 or higher). Click Next.
-
Click Finish.
-
Click Close.
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