Netgear GS748T User Manual download pdf (Page 31)

Troubleshooting A-1

v1.0, January 2007

Appendix A

Troubleshooting

This chapter provides information about troubleshooting the NETGEAR GS748T Gigabit Smart

Switch. Information is supplied as:

• A Troubleshooting chart

• Additional troubleshooting suggestions

Troubleshooting Chart

Table A-1 lists symptoms, causes, and solutions of possible problems.

Table A-1. Troubleshooting Chart

Symptom Cause Solution

Power LED is off No power is received Check the power cord connections for the switch at

the switch and the connected device

Make sure all cables used are correct and comply

with Ethernet specifications.

Link/ACT LED is off Port connection is not

working

Check the crimp on the connectors and make sure

that the plug is properly inserted and locked into the

port at both the switch and the connecting device.

Make sure all cables used are correct and comply

with Ethernet specifications. See Appendix D.

Check for a defective adapter card, cable, or port by

testing them in an alternate environment where all

products are functioning.

File transfer is slow or

performance

degradation is a

problem

Half- or full-duplex

setting on the switch

and the connected

device are not the same

Make sure the attached device is set to auto

negotiate.

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Netgear GS748T User Manual Page 31