3Com Corporation
3Com 10/100 LAN + 56K Global Modem PC Card Type III
Model 3C3FEM556C
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Read this file before installing the LAN+Modem card.
This file contains information that became available
after the User Guide was published.
This file includes the following topics:
- General Installation Guidelines
- Manual Uninstall/Reinstall for Windows 95
- Mobile Configuration Manager
- Problems and Solutions
- Technical Support
============================================================
General Installation Guidelines
-------------------------------
To ensure a trouble-free installation, follow these
general recommendations.
1. If practical, remove all PC cards from your system.
2. Close all applications.
3. Follow the installation instructions for your
operating system. Refer to the User Guide.
============================================================
Manual Uninstall/Reinstall for Windows 95
-----------------------------------------
If your first attempt at installing the card is
unsuccessful for any reason, your best course may be
to:
1. Remove the LAN+Modem card and its software from
your system.
2. Remove all other PC cards from your system.
3. Repeat the installation procedures.
Also, consider whether your operating system
environment may be unstable due to frequent and
repeated attempts to install or remove hardware and
software components. Your operating system may contain
configuration files and drivers left over from
previous changes to the system.
If you want to confirm a thorough uninstall before
reinstalling the LAN+Modem card, remove the LAN+Modem
card driver from the Device Manager and do the
following:
1. Open the Control Panel and double-click the System
icon.
2. Open the Device Manager tab. The LAN+Modem card
should be listed under Modems, under Network
Adapters, and under Multifunction Adapters.
3. To remove both the network and modem adapters
function, select "LAN+Modem Card" under "Multi-
function Adapters" and click remove. If two
instances of the card are installed, be sure
to remove both of them.
4. Open a DOS window. From DOS, change to the Windows
95 INF subdirectory. The default name for this
directory is C:\WINDOWS\INF. For example, at the
DOS prompt, type:
c: [Enter]
cd \windows\inf [Enter]
5. Delete the LAN+Modem card .INF files. Type:
del netf556c.inf [Enter]
del mff556c.inf [Enter]
del mdmf556c.inf [Enter]
6. Change to the \windows\inf\other subdirectory.
Type:
cd \windows\inf\other [Enter]
7. Delete any 3Com system files. Type:
del 3com*.inf [Enter]
8. Change to the Windows 95 System subdirectory. Type:
cd \windows\system [Enter]
9. Delete the LAN+Modem card system files. Type:
del un3c556c.exe [Enter]
del fem556c3.sys [Enter]
del fem556c4.sys [Enter]
del fem556c5.sys [Enter]
del wc556c.dll [Enter]
del w556cndi.dll [Enter]
10. Remove the LAN+Modem card from the PC card slot.
11. From the Windows 95 Start menu, select Shut Down,
then select "Shut down the computer".
12. Restart the computer.
When this procedure is complete, you can reinstall the
card using the procedures given in the User Guide. If
problems persist:
- Reboot your computer in Safe Mode.
- Restart the computer. At the start-up beep, press
[F8] and select the Safe Mode option.
- Open the Device Manager and check whether the
LAN+Modem card is present under the Network Adapter
or Modems device categories.
- If the LAN+Modem card is present under any of these
categories, select it and click Remove.
============================================================
Mobile Configuration Manager
----------------------------
DynamicAccess Mobile software makes it easier to
manage the diverse access and management requirements
of mobile users. Settings for any number of different
LAN connections (for example, settings for users
connecting remotely; different settings for users
connecting locally) can be saved in a single file and
included with each notebook configuration. This
enables the system to recognize more than one set of
configuration settings at a time.
The Mobile Configuration Manager software can be
installed under Windows 95, Windows 98, Windows NT.
The Mobile Configuration Manager software is supplied
on the Installation CD. The following procedures
assumes that the CD-ROM drive is Drive D and that
the Installation CD is in the drive.
Windows 98 Environments:
1. From Start/Run menu, run d:\damobile\win98\damobile
NOTE: After installing the Mobile Configuration
Manager under Windows 98 (SE Version 2222 or
later) you may get a message stating that the
Dial-Up Networking detected is newer than the one
tested with MCM. This message is normal and no
action is required. The software should function
normally.
Windows 95 Environments.
1. Upgrade your Windows 95 environment by running
three utilities. From Start/Run, run the following
programs:
d:\damobile\win95\dcom95.exe
d:\damobile\win95\msdun13.exe
d:\damobile\win95\tap12195.exe
2. Install the Mobile Configuration Manager software.
From the Start/Run menu, run
D:\DAMOBILE\WIN95\DAMOBILE. Type:
d:\damobile\win95\damobile [Enter]
For detailed information on DynamicAccess
software, refer to the 3Com World Wide Web site at:
http://www.3com.com/dynamicaccess/mobile
Windows NT Environments
For information on downloading and installing
Mobile Configuration Manager software for
Windows NT, refer to the 3Com DynamicAccess WWW
site at:
http://www.3com.com/dynamicaccess/mobile/free
============================================================
Problems and Solutions
----------------------
This section identifies known problems with LAN+Modem
card installation and operation. Topics include:
- General Problems
- Problems Related to Windows 95 OSR 2
- Problems Related to Windows 98
- Problems Related to Windows NT 4.0
- Problems Related to Specific Hardware Platforms
=======================================================
General Problems
----------------
Problem: System hangs when card is in docking station
Some laptop docking stations do not properly
manage resources for the LAN+Modem card. If
you notice this problem, we recommend that
you install the LAN+Modem card only in the
computer's main card slots.
Problem: Unable to ping between two installed LAN cards
This could be a problem with how the IP
addresses are bound. Bind one card to a
static IP address. For the other, set
networking to specify the IP address
automatically.
Problem: System refuses to enter suspend mode while a
communications application is running
The LAN+Modem card does not support forcing
the system into suspend mode while a
communication application (such as
HyperTerminal) is running. Windows environments
reject suspend-mode requests in such instances.
After the suspend-mode failure, the LAN
interface may no longer show up in the system
as a valid device. If this happens, try one
of the following:
- Close all programs and log in as a different
user.
- Remove the card from the computer, reinsert
it in the same slot, and run Suspend/Resume
again.
Problem: Could not install the card because system could
not find a valid .INF file; or,
card is not recognized by system.
This is a BIOS problem. Contact your computer
vendor for information on obtaining and
installing the latest BIOS version for your
computer.
Problem: Card not operating or system not recognizing card
after installation procedure is completed.
If you have not been prompted to restart your
computer after you have completed the installation
procedure, restart your computer.
=======================================================
Problems Related to Windows 95 (OSR 2)
--------------------------------------
Problem: An option to select NDIS5 appears in Windows
95 OSR 2 driver options
Although this prompt may appear under Windows
95, this operating system supports only NDIS 4.
Problem: Modem does not give a sound
With the default audio settings for Windows
95, you may not hear the sound from the modem
when you dial out. To enable the sound,
complete the following procedure:
1. Locate the speaker icon in the system tray.
If there is no speaker icon in the system
tray, open the Control Panel and double-click
Multimedia. On the Audio page, make sure
Show volume control on the task bar is checked
2. Double click the speaker icon in the system
tray.
3. When the Master Out window opens, select
Options.
4. Choose Properties and make sure the Mono In
box is checked. Click OK.
5. When the Master Out window is redisplayed,
check Mono In Balance. Ensure that the mute
box is unchecked.
If the modem still does not make a sound,
you may need to update your computer's BIOS.
Problem: Failure to install two LAN+Modem cards
The modem driver only supports one modem in
Windows 95 environments. For this reason,
dual installations are not supported.
However, you can disable one modem
installation and operate with one modem and
two LAN connections. For technical
information, see Microsoft Limitation Article
Q184191 on he Microsoft on-line support Web
site.
Problem: Unattended installation of LAN+Modem card failed
Windows 95 OSR 2 does not support the PCIC TI 1251
controller card. If your notebook contains this
type of controller card, you must upgrade your OS.
=======================================================
Problems Related to Windows 98
------------------------------
Problem: Card fails to install.
This problem has been observed on several
hardware platforms and usually indicates that
the computer's BIOS is not properly
supporting Windows 98. Upgrade to a current
BIOS that supports Windows 98. Contact your
computer manufacturer for details.
Problem: Problems with IntraNetware Client 2.2
Novell IntraNetware client version 2.2 does
not support Windows 98. If you try the
LAN+Modem card with this network operating
system, you may experience problems.
Obtain and install Novell IntraNetware client
version 3.1 or later.
Problem: Modem does not give a sound
With the default audio settings for Windows
98, you may not hear the sound from the modem
when you dial out. To enable the sound,
complete the following procedure:
1. Locate the speaker icon in the system tray.
If there is no speaker icon in the system
tray, open the Control Panel and double-click
Multimedia. On the Audio page, make sure
Show volume control on the task bar is checked
2. Double click the speaker icon in the system
tray.
3. When the Master Out window opens, select
Options.
4. Choose Properties and make sure the Mono In
box is checked. Click OK.
5. When the Master Out window is redisplayed,
check Mono In Balance. Ensure that the mute
box is unchecked.
If the modem still does not make a sound,
you may need to update your computer's BIOS.
=======================================================
Problems Related to Windows NT 4.0
----------------------------------
Problem: Using cellular connect, some files do not transfer.
The card does not support cellular connect with NT4
running Softex card and socket services. For cellular
connect, use the following initialization procedure.
The default modem setting is AT&F.
1. Set control call as follows:
Motorola cellular phones -- AT~C0
Nokia cellular phones -- AT~C1
2. Enter the following initialization string:
AT+MS=v34,0,0,7200,0,7200
ATS53=85
ATS54=0
Problem: Computer not connecting to network.
The most common problems under NT 4.0
occur because system resources are
not set correctly.
If you are installing the LAN+Modem card
using the point-enabler procedure, refer
to the following table for examples of what
resources to select.
Remember that you can always use the
Windows NT Diagnostics Resource tab to
determine which resources are free.
--------------------------------
System Recommended IRQ
--------------------------------
Micron Trek2 10
Dell Latitude LT 10
Dell Inspiron 7000 10
Dell Inspiron 3200 10,11
IBM 770ED 10
TI/Acer Extensa 670CDT 10
Compaq 7400 10
Toshiba 660CT 11
Toshiba 750DVD 11
Toshiba 780CDM 11
Gateway 9100SE 11
NEC Versa LX 11
--------------------------------
For a more detailed list of what resources to
try for specific notebook computer models, see
file NTconfig.txt.
Problem: Suspend/Resume and hot-swap problems
This class of NT problems may be due to
limitations in the support for dual-function
cards under various card and socket services.
Remove the card wizard or card and socket
services software and reinstall the card
using the point-enabler installation procedure
described in the User Guide.
This problem may be fixed in later versions
of the software. Contact your software
manufuacturer for information on updates.
Problem: Card Slots disabled in NT 4.0 after card
installation
When attempting to install a 16-bit adapter,
it is necessary to enable the PCMCIA device
in Windows NT 4.0. To do this, click My
Computer/Control Panel/Devices. Scroll down
to the PCMCIA. Click Startup. Change the
selection to BOOT and click OK. You will
need to restart the computer.
Problem: Network Setup Wizard busy or not responding.
This has been observed on some systems
running SystemSoft Card and Socket Services
version 4.10.13.
The installation seems to proceed normally.
At the message: "Windows NT is now ready to
start the Network so that you can complete
the installation of Networking. Click Next to
start the Network."
Turn off the computer and restart it. This
should restore the card to normal operation.
=======================================================
Problems Related to Specific Hardware Platforms
-----------------------------------------------
Fujitsu Lifebook 585TX
Problem: While using the LAN and modem functions at the
same time, the computer fails to respond.
Simultaneous LAN and modem operation is not
supported on this computer.
Texas Instruments Extensa 390
Problem: System will not detect card.
The LAN+Modem card is not supported on this
computer.
Toshiba (all models)
Problem: Card does not respond when configured with
default resources
This problems applies to systems running
Service Pack 3 under Windows NT 4.0. When
the card is set up using the default
settings, the system may not respond. Toshiba
systems require IRQ 11 for the LAN+Modem
card. Changing the interrupt from 10 to 11
solves the problem.
Refer to NTCONFIGS.TXT
On the Toshiba Satellite 4000 CDT, IRQ 15
is already in use (ATAPI). On this platform,
use the Windows NT Diagnostics Resource tab
to determine which resources are free. You
can, for example, create a COM8 at IO 3F8
with IRQ 13.
Acer Travelmate 723TX P2 400 TI PCI 1251
The internal modem must be disabled before
installing the LAN+Modem card.
=======================================================
Technical Support
-----------------
For the latest information on the LAN+Modem card, try
one of the following 3Com Web sites:
World Wide Web Site
http://www.3com.com
3Com Support Web Site
http://www.support.3Com.com
3Com Software Library
http://www.mhz.com/support/software.cfm?model=3C3FEM556C
3Com KnowledgeBase
http://knowledgebase.3com.com/
Frequently Asked Questions
http://www.mhz.com/support/faqs.cfm?model=3C3FEM556C
3Com FTP site for all FEM556C-Family files
ftp://ftp.mhz.com
3Com Bulletin Board Service
---------------------------
Set your modem to: 8 data bits
No parity
1 stop bit
------------------------------------------------
Country Data Rate Telephone Number
------------------------------------------------
Australia Up to 14,400 bps 61 2 9955 2073
Brazil Up to 14,400 bps 55 11 5181 9666
France Up to 14,400 bps 33 1 6986 6954
Germany Up to 28,800 bps 4989 62732 188
Hong Kong Up to 14,400 bps 852 2537 5601
Italy Up to 14,400 bps 39 2 27300680
Japan Up to 14,400 bps 81 3 5977 7477
Mexico Up to 28,800 bps 52 5 520 7835
China Up to 14,400 bps 86 10 684 92351
Taiwan Up to 14,400 bps 886 2 377 5840
U.K. Up to 28,800 bps 44 1442 438278
U.S.A. Up to 53,333 bps 1 847 262 6000
For faster access (up to 64 Kbps) with a digital
modem, ISDN users can dial 1 847 262 6000
3Com Facts Automated Fax Service
--------------------------------
The 3Com Facts automated fax service provides
technical articles, diagrams, and troubleshooting
instructions. Call 1 408 727 7021 from a touch-tone
telephone.
Support from Your Network Supplier
----------------------------------
If additional assistance is required, contact your
network supplier. Many suppliers are authorized 3Com
service partners who are qualified to provide a
variety of services, including network planning,
installation, hardware maintenance, application
training, and support services.
When you contact your network supplier for assistance,
have the following information ready:
- Product model name, part number, and serial number
- A list of system hardware and software, including
revision levels
- Diagnostic error messages
- Details about recent configuration changes, if
applicable
Support from 3Com
-----------------
If you are unable to obtain assistance from the 3Com
online technical resources or from your network
supplier, 3Com offers technical telephone support
services.
If you contact 3Com for assistance, have the following
information ready:
- Product model name, part number, and serial number
- A description of your computer system hardware and
software, including revision levels
- Relevant diagnostic error messages
- Relevant details about recent configuration changes
- Topology of your network, including the type of
network device (for example hub or switch) your
computer is connected to
- Type of computer you are trying to connect to (for
example, NetWare server, NT server or peer-to-peer
networking)
(%VER v1.5.06)
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.