Appendix a Troubleshooting, Troubleshooting Chart

Appendix A

This chapter provides information about troubleshooting the NETGEAR GS748T Gigabit Smart Switch. Information is supplied as:

•A Troubleshooting chart

•Additional troubleshooting suggestions

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

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	Check the crimp on the connectors and make sure
	working	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	Half- or full-duplex	Make sure the attached device is set to auto
performance	setting on the switch	negotiate.
degradation is a	and the connected
problem	device are not the same

Troubleshooting

A-1