TROUBLESHOOTING
Solutions for Common ProblemsBasic TroubleshootingNetwork problems are often caused by cabling errors, conflicts with other devices installed in the same computer, or software that has been configured incorrectly. If you encounter a network problem, use the following checklist to identify and correct the problem.
KMake sure the cable is within ANSI/IEEE 802.3 and ISO/
KMake sure the card is securely seated in the expansion slot.
KMake sure the network cable is securely attached to the card's connector.
KMake sure the correct network operating system driver is installed.
KMake sure the computer is receiving power. If you suspect the power outlet to be faulty, plug another device into it to verify that it is working. Check to see whether the outlet is controlled by a wall switch.
KIf you set your network card's speed manually, be sure the speed selected for the hub and card (10 Mbps or 100 Mbps) match.