152 Troubleshooting Your System3 Check the appropriate indicator on the NIC connector. See "NIC IndicatorCodes" on page 19.• If the link indicator does not light, check all cable connections.• If the activity indicator does not light, the network driver files mightbe damaged or missing.Remove and reinstall the drivers if applicable. See the NIC'sdocumentation.• Change the autonegotiation setting, if possible.• Use another connector on the switch or hub.If you are using a NIC card instead of an integrated NIC, see thedocumentation for the NIC card.4 Ensure that the appropriate drivers are installed and the protocols arebound. See the NIC's documentation.5 Enter the System Setup program and confirm that the NIC ports areenabled. See "Integrated Devices Screen" on page 64.6 Ensure that the NICs, hubs, and switches on the network are all set to thesame data transmission speed. See the documentation for each networkdevice.7 Ensure that all network cables are of the proper type and do not exceed themaximum length.If all troubleshooting fails, see "Getting Help" on page 181.Troubleshooting a Wet SystemCAUTION: Many repairs may only be done by a certified service technician.You should only perform troubleshooting and simple repairs as authorized inyour product documentation, or as directed by the online or telephone serviceand support team. Damage due to servicing that is not authorized by Dell isnot covered by your warranty. Read and follow the safety instructions thatcame with the product.1 Turn off the system, including any attached peripherals, and disconnectthe system from its electrical outlet.2 Open the system. See "Opening the System" on page 82.
