3com Megahertz 10 Manual De Usuario

 

Basic troubleshooting, 
applicable for all 
problem situations.

Inspect all cables and connections.

Check whether your card is fully inserted into the slot.

Verify that you have the latest BIOS for your system. If 
not, check the Web site for your computer and follow the 
BIOS upgrade instructions.

Check for multiple installations of the card.

Check whether your system’s PCMCIA or CardBus 
Controller is installed and running properly: go to 
Control Panel/System/Device Manager/PCMCIA Card. 
Verify that the controller is present and shows no errors.

Open Control Panel/PC Card to confirm that the system 
recognizes your card.

In Control Panel/Network make sure that you have the 
correct clients and protocols installed.

The LAN device is not 
functional. LED on the 
connector is off or 
mismatches the real 
network speed.

Use Control Panel/System/Device Manager to inspect the 
status of your LAN card. 

If you see a red “X”, enable the card by checking the 
appropriate box under Properties.

If you see a yellow exclamation mark, click the icon to see 
what the conflict is. Verify that there are adequate system 
resources. Try to free system resources (for example, disable 
the infrared port), then remove and reinstall the card. 

Losing network 
connection after 
disconnecting or 
changing the media 
speed.

This can occur when using NetWare servers and IPX/SPX 
protocol. It happens when the frame type is selected 
automatically. A temporary solution is to reboot after 
disconnecting and reconnecting the cable in NetWare 
networks. The permanent solution is to use specific frame 
types such as 802.2 or 802.3.

Need to force speed 
and duplex settings.

In most cases, the automatic settings work fine. However, 
if you to need to force speed or duplex settings to match 
those of an attached device:

1 Open Control Panel/Network

2 Double click the LAN card.

3 Click the Advanced tab.

4 Highlight Network Link Selection and choose the 

correct speed.