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■ Chapter 4 Troubleshooting
4-13
Network Adapter / Ethernet Problems
The Ethernet adapter does not work -
Go to [Start > Settings > Control Panel > System >
Hardware > Device Manager]. Double-click on Network
Adapters and check if Realtek RTL8139/810x Family
Fast Ethernet NIC appears as one of the adapters. If it
does not exist, Windows has not detected the Realtek
RTL8139/810x Family Fast Ethernet NIC or the device
driver has not been installed properly. If there is a yellow
mark or red-cross on the network adapter, it may be a
device or resource conflict. Replace or update the device
driver from the factory CD-ROM disk or consult Windows
manual on how to solve the resource conflict problem.
Make sure the physical connections on both ends of the
cable are good.
The hub or concentrator may not be working properly.
Check to see if other workstations connected to the same
hub or concentrator is working.
The Ethernet adapter does not appear to operate in the
100Mbps transmission mode -
Make sure the hub you are using supports 100Mbps
operation.
Make sure that your RJ-45 cable meets the 100Base-TX
requirements.
Make sure the Ethernet cable is connected to the hub
socket that supports 100Base-TX mode. The hub may
have both 10Base-TX and 100Base-T sockets.