NETGEAR GS524T manual 1.Troubleshooting Information, Symptom, Cause, Solution

CHAPTER 5: TROUBLESHOOTING

This chapter provides information about troubleshooting the NETGEAR Model GS524T Copper Gigabit Switch. Table 5-1 lists symptoms, causes, and solutions of possible problems.

Table 5-1. Troubleshooting Information

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.
1000M or 100M	Port connection is	Check the crimp on the connectors and make
LED is off or	not functioning.	sure that the plug is properly inserted and
intermittent.		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 C.
		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	Half- or full-duplex	Make sure the remote link partner is set to
or performance	setting on the switch	auto negotiate.
degradation is	and the connected
a problem.	device are not the same.
A segment or device	One or more devices	Verify that the cabling is correct. Be sure all
is not recognized as	are not properly	cable connectors are securely positioned in the
part of the network.	connected, or cabling	required ports. Equipment may have been
	does not meet	accidentally disconnected.
	Ethernet guidelines.
COL LED is	Collisions are	Some collisions are normal when the connection
blinking yellow	occurring on the	is operating in half-duplex mode.
excessively.	connected segment.
	Duplex modes are	Recheck the link partner settings.
	mismatched.

troubleshooting 5-1