SMC Networks 10/100 Mbps, User Manual

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T
ROUBLESHOOTING
38
Network Connection Problems
There may be a network connection problem if the LED on the card’s
bracket does not light, or if you cannot access any network resources from
the computer. Check the following items before contacting SMC Technical
Support.
• Be sure you are using Category 5 cable for 100 Mbps connections, and
that the length of any cable does not exceed 100 m (328 ft).
• Inspect all network cables and connections. Make sure the network
cable is securely attached to the card’s connector.
• Make sure the correct network card driver is installed for your
operating system. If necessary, try reinstalling the driver.
• Make sure the computer and other network devices are receiving
power. If you suspect a power outlet to be faulty, plug another device
into it to verify that it is working.
• If the network card’s speed or duplex mode has been configured
manually, check that it matches that of the attached network device
port. Note that it is recommended to set the card to auto-negotiation
when installing the network driver.
• The port on the network device that the card is attached to may be
defective. Try using another port on the device.
• If you cannot access a Windows or NetWare service on the network,
check that you have enabled and configured the service correctly. If
you cannot connect to a particular server, ensure that you have access
rights and a valid ID and password.
• If you cannot access the Internet, be sure you have configured your
system for TCP/IP.