File: trouble.txt
3Com Corporation
3Com Megahertz 10/100 LAN + 56K Modem PC Card
(3CCFEM556 PC Card family)
This file contains troubleshooting information for the LAN+Modem card.
This file includes the following topics:
- Troubleshooting in Windows95B (OSR2) Problems
- Troubleshooting for Windows NT 4.0
- Troubleshooting for DOS
- Troubleshooting for Windows for Workgroups
- Troubleshooting in Windows NT 3.51
- Troubleshooting in Windows 98 and Windows NT 5.0
- Known Problems with NEC Platforms
- Known Problems with TI Platforms
- Known Problems With Other Hardware Platforms
- General Hardware Troubleshooting Tips
- WNICDIAG.EXE
- General Modem Troubleshooting Tips
============================================================
Troubleshooting in Windows95B (OSR2) Problems
---------------------------------------------
Problem: Unable to create multiple configurations with one
portion of the adapter disabled and the other
enabled in Device manager.
Solution: This feature is not supported by this adapter.
Problem: SETUP fails to complete
Solution: Try rebooting and see if SETUP continues after
reboot. If not, try the Plug N Play method
described in the manual and W95NDIS3.TXT file.
Problem: SETUP cannot find files.
Solution: This problem can occur when SETUP is requesting
files from one of the Installation Disks. If you
click OK before swapping the floppies in Drive A,
If you click OK with Installaiton Disk 1 in the
floppy drive, and SETUP wants a file from
Installation Disk 2, it may fail to find the
file even after insert the proper diskette. You
can continue with the SETUP process by pointing
to a specific path on the correct
Installation Disk, for example A:\WIN32 or
A:\WIN95.
Problem: Not connecting to network.
Solution: Double-check that you have the appropriate
client installed. This is especailly true for
systems with built-in modems, since they are
often configured at the factory for
dial-up networking.
Problem: Card is not detected, even though the PCMCIA
controllers are installed and working. Other
cards function normally.
Solution: The 3Com Network Adapter was probably
installed incorrectly.
Try running UNINSTAL and reinstalling the
adapter. If this fails, remove all instances
of the LAN+Modem card in the Device Manager.
Be sure to expand every Device Category
as this may be where the LAN+Modem card
is incorrectly installed.
============================================================
Troubleshooting for Windows NT 4.0
----------------------------------
Problem: Card not connecting to network. Modem may not be
working. LAN function failed to start server
service.
Solution: Install Windows NT Service Pack 3.0.
Problem: Error message: "At least one service or driver
failed during system startup..." One common error
of this type is failure to start the Server
service.
Solution: This problem is related to serial and COM
port assignments. Check your current COM port,
IRQ, and memory range settings. Reallocate
resources if necessary.
Problem: An error in the Event Viewer reports
that COM ports have overlapping control registers
(for example, the control registers for COM4
overlap the control registers for COM2).
Solution: Reinstall Service Pack 3.
============================================================
Troubleshooting for DOS
-----------------------
Problem: Cannot install the NDIS 2 driver in the Compaq
Armada 4120, running DOS with Card and Socket
Services 5.0 enabled.
Solution: Use the Point Enabler FMENABLE.EXE
in this configuration.
Problem: The Enabler assigns either IRQ 3 or IRQ 4.
After loading the ODI driver and VLM client,
it cannot see the server, even though the
link is ON on both sides.
Solution: Force the enabler to use IRQ 10 (IRQ=A) or
another available IRQ.
============================================================
Troubleshooting for Windows for Workgroups
------------------------------------------
If you cannot install the drivers from the path C:\MHZ,
install them from A:\ using Installation Disk 2. See
WFWNDIS2.TXT for procedures.
For the latest information on installing the LAN+Modem in
this environment, see the 3Com World Wide Web site at
HTTP://WWW.3COM.COM. Locate the Support area and select
Network Interface Cards. You can also obtain the latest
drivers the 3Com Support BBS at 1-408-980-8204.
============================================================
Troubleshooting in Windows NT 3.51
----------------------------------
If your card does not work with the default IRQ and COM
settings (IRQ10 and COM2), try different settings.
============================================================
Troubleshooting in Windows 98 and Windows NT 5.0
------------------------------------------------
These operating systems had not been released by Microsoft
at the time the product was shipped. No information
is available at this time.
For the latest information on installing the LAN+Modem in
this environment, see the 3Com World Wide Web site at
HTTP://WWW.3COM.COM. Locate the Support area and select
Network Interface Cards. You can also obtain the latest
drivers the 3Com Support BBS at 1-408-980-8204.
============================================================
Known Problems with NEC Platforms
---------------------------------
1. In some NEC notebook comuters, you must use the bottom
slot only for the LAN+Modem card running under DOS
and Windows. These models include:
NEC Versa 6000H NEC Versa 6050H
NEC Versa 6010H
NEC Versa 6030H
2. The NEC 6030X does not support the LAN+Modem
card.
============================================================
Known Problems with TI Platforms
--------------------------------
Problem: Card fails to install on TI Extensa 560 family,
600, 650, 660, and TravelMate 6000 family
platforms under Windows 95.
Solution: Obtain the NO PCM utility from the TI web site.
============================================================
Known Problems with Other Platforms
-----------------------------------
Problem: AST Ascentia P80
Solution: Not supported. This platform does not appear
to recognize 16-bit cards. Contact AST for
possible solutions.
Problem: The Fujitsu Lifebook 585tx hangs or disconnects
from the network in Win95B when operating LAN and
modem modes simultaneously. Also, the modem
fails uner DOS.
Solution: Upgrade to Windows 95 to run the modem.
Do not use the LAN and modem functions
simultaneously.
Problem: Micron XPE unable to dial using modem in DOS.
Solution: The modem operates correctly under Windows 95.
An upgrade to Windows 95 is recommended.
Problem: Micron Transport VLX unable to run CONFIG.EXE
and load Enabler.
Solution: Disable Plug and Play in the BIOS before running
CONFIG.EXE and loading the Enabler.
Problem: The Enabler cannot activate the PC Card in the
Compaq Presario 1080 PC.
Solution: To make this PC work in DOS, disable the modem
and sound cards in BIOS.
Problem: HP OmniBook 486/DX-4 4000c fails to load driver
with default settings.
Solution: Use I/O Port 320. This value should be specified
in the NET.CFG.
Problem: HP OmniBook 800CT does not support the LAN+Modem
card under DOS.
Solution: An upgrade to Windows 95 is recommended.
Problem: SETUP hangs on the Digital HiNote VP 575.
Solution: Upgrade to the latest BIOS (available from the
Digital web site).
============================================================
General Hardware Troubleshooting Tips
-------------------------------------
If the adapter diagnostic tests in CONFIG.EXE or
WNICDIAG.EXE fail, the adapter might not be defective.
Check the following:
1. Make sure that the adapter is operating in a computer
containing the Personal Computer Memory Card
International Association (PCMCIA) Release 2.01, Type
II or Type III slots. Usually the CONFIG.EXE will work
best on an INTEL PCIC or compatible controller.
If using Windows 95 WNICDIAG.EXE, make sure that the
driver is Properly loading if it appears with a yellow
exclamation point or Red X, continue with Windows 95
trouble shooting at the end of this Document.
2. Make sure that the adapter is completely seated in its
slot. Review the installation instructions in the
appropriate adapter guide.
3. Make sure that your computer is running DOS 3.1 or
higher and that no device drivers or memory managers are
loaded.
With DOS 6.22 this can be achieved by rebooting and
hitting F5 when the message "Starting MS-DOS" appears on
the screen.
In Windows 95, this can be achieved by rebooting and
hitting F* when the message "Starting Windows 95"
appears on the screen. The Windows 95 boot menu should
then appear. At this point choose "Safe Mode Command
Prompt Only." Usually this choice is Option #7.
4. Inspect all cables and connections. Try the laptop at a
known good port. Also, for twisted pair try attaching
the adapter directly to the HUB or SWITCH. If this
works, there is probably an intermediate wiring problem.
Contact your network administrator.
5. If you are running the Echo Server test, make sure that
the adapter is securely connected to a properly cabled
network and an echo server is set up on the network.
6. If you are configuring the I/O base address or interrupt
request level make sure that the settings you choose for
these parameters do not conflict with any other
peripheral or software program installed in the
computer.
7. Make sure that the configuration setting for ether FULL
DUPLEX is correct.
8. The computer in which the adapter is installed might be
defective. Install the adapter in a known functioning
computer and run the tests again.
9. Replace the failed adapter with a known working adapter,
with the same configuration. If the second adapter
fails, something is probably wrong with the test
environment, not with the adapter.
============================================================
WNICDIAG.EXE
------------
The WNICDIAG.EXE will not work properly if the drivers are
not loading or unloading properly. Some of the factors
that may be causing this are resource conflicts, use of
other clients (for example, Client 32), or a faulty
installation.
If the driver appears to be loading correctly and there
are no signs of errors, the adapter is most probably
working properly.
If you are running Client 32, we recommend that you
run CONFIG.EXE from DOS when you want to verify
hardware integrity. If the drivers do not appear to be
loading (a yellow exclamation or red x in
CONTROL PANEL/SYSTEM/DEVICE MANAGER), try deleting and
reinstalling the adapter. Make sure you are using
the latest version of the Client 32. Check with your network
administrator or Novell's website for the current
latest version.
============================================================
General Modem Troubleshooting Tips
----------------------------------
--------------
Loopback Tests
The following loopback AT commands are not supported:
Local Analog Loopback (AT&T8)
Remote Analog Loopback (AT&T1)
Local Digital Loopback (AT&T6)
Remote Digital Loopback (AT&T3)
----------------------------------
If You are Using Quicken Version 6
The default maximum baud rate of a modem in Quicken 6 is
19,200bps. Follow the instructions in the Quicken 6 manual
to increase this baud rate for your Megahertz modem.
-------------------------------
Receiving Faxes in ProComm Plus
The auto-answer detect feature of ProComm Plus does not
work with your 3CxEM556 series modem. Turn auto-answer
detect off.
-----------------------------------
Using Automatic Credit Card Dialing
When you enter the dial string for a credit card call,
place an ampersand (&) at the end of the phone number,
before the credit card number.
-----------------------------------------------------
If You Don't Use Error Correction or Data Compression
To enhance performance when not using error correction or
data compression, set S24=64.
-----------------------------------
Where is the Script file for XXXXX?
There are several script files included on Installation
Diskette 1. Check WWW.3COM.COM for more available Script
files If you are unable to find oner for your communication
software, please check with the vendor or the vendor's
website for a script file.
------------------------------------------
You can't achieve 56K or 53.3K connections
The maximum allowed rate is currently 53.3K by the FCC.
You can only achieve these by connecting to a compatible
56K protocol. Your speed may be limited by the number of
different nodes between your modem and your ISP.
------------------------------------
You Can't Get a 33,600bps Connection
Your modem connect speed of 33,600bps is set to OFF. To
enable a 33,600bps connection, set S33=0. Also, connection
and data transfer rates will be dependent on several
factors including (but not limited to) the type of modem
you are connecting to and the amount of line noise.
-----------------------------
Adjusting the Dialtone Volume
The modem supports only one dialtone volume and it
cannot be changed or turned off. To supress the volume,
turn off or mute the PC speaker.
-------------------------------
Cellular: The Modem Won't Work
Your cellular phone battery may be low. Insert a fully
powered battery.
----------------------------------------------------
Cellular: Can't Hear Modem When Dialing & Connecting
Your modem is designed not to produce audio
until a connection is being negotiated.
-------------------------------------
Cellular: The Phone Keeps Turning Off
The modem is designed to turn off the cellular phone
whenever the modem power is turned off.
-----------------------------------------------------
Cellular: Dial-up Networking Won't Work With Cellular
Windows 95 OSR2 has a feature in the Control Panel under
the Power icon (PC-Card Modems tab) called "Turn off
PC-Card modems when not in use" that must be disabled
during dial-up networking. This should allow you to hear
the beep-up tones when the modem is inserted and active,
and to use dial-up networking.
--------------------------------------------------------
Rapidcomm Voice: Error Message: "Wrong Token Error 1001"
This error occurs when a greeting or auxiliary message is
recorded when calling in remotely to RapidComm Voice
without pressing pound (#) following the recording.
---------------------------------------
Rapidcomm Voice: Auto Detect Won't Work
Auto Detect doesn't work when set to Voice/Data/Fax when
receiving a fax from some modems. The default setting for
RapidComm Voice Auto Detect that is shipped with your modem
is set to Data/Fax, so Auto Detect should work.
(%ver trouble.txt v1.0)
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.