3Com manual Troubleshooting the NJ220

Troubleshooting the NJ220

Event/Message	Description	Solution
Green LEDs on Ports 1-4	Network device has no	■	Make sure the cable is properly
are not on	connection to IntelliJack		connected to the network device.
		■ Make sure the cable is firmly
			connected to one of the four
			IntelliJack ports labeled 1-4.
		■ Make sure the cable is a good
			straight-through cable.
Amber LED on Port 1 is	Power is not being	■	Make sure the cable is properly
not lit	forwarded to network		connected to Port 1 of the IntelliJack.
	device	■	Make sure the cable is properly
			connected to the powered device.
		■ Make sure the IntelliJack is configured
			to match the cable - either straight
			through or crossover.
		■ Make sure the powered device is IEEE
			802.3af compatible.
		■ Make sure the power requirement for
			the powered device does not exceed 7
			watts. The IntelliJack can only forward
			up to 7 watts.
Power LED is blinking	Unit has detected a problem.	■	Contact 3Com Technical Support.
continuously	Traffic can pass through, but
	management will not work.
Authentication Failure	Wrong password has been	■	Confirm correct password and re-
	entered		type.
Timeout	Device did not respond	■	Refresh the screen after a few
	within a specified period of		seconds. If the problem persists, try to
	time		rediscover the device.
Attributes Error	Unexpected configuration	■	Confirm that you have specified valid
	parameters		parameter values and retry the
			configuration operation.
		■ NOTE: This error should not appear to
			the user under normal conditions.
General Error	Something other than	■	Retry the operation you were
	authentication failure,		performing.
	timeout or attributes error	■	NOTE: This error should not appear to
	has occurred
			the user under normal conditions.

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