Lantronix Hub manual Power-up Troubleshooting, Power-up Problems and Error Messages

6: Troubleshooting

This chapter discusses how you can diagnose and fix errors quickly without having to contact a dealer or Lantronix. It helps to connect a terminal to the console port while diagnosing an error to view summary messages that may be displayed.

When troubleshooting, always ensure that the physical connections (power cable, network cable, and serial cable) are secure. If you have trouble with wireless networking, it may help to connect the MSS to a wired Ethernet network to verify that it is working properly and to check the wireless settings.

Note: Some unexplained errors might be caused by duplicate IP addresses on the network. Make sure the MSS IP address is unique.

Power-up Troubleshooting

Problem situations and error messages are listed in the table below. If you cannot find an explanation for your problem, try to match it to one of the other errors. If you cannot remedy the problem, contact your dealer or Lantronix Technical Support.

Table 6-1. Power-up Problems and Error Messages

Problem/Message	Error	Remedy
The MSS is connected to	The unit or its power supply is	Contact your dealer or Lantronix Technical
a power source, but there	damaged.	Support for a replacement.
is no LED activity.
The MSS is unable to	This generally indicates a hardware	Note the blinking LED and its color, then
	fault. One of the LEDs will be solid	contact your dealer or Lantronix Technical
complete power-up
	red for three seconds, followed by	Support. The MSS will not be operational
diagnostics.
	one second of another color.	until the fault is fixed.
	There is a problem with the serial	Check the terminal setup and the physical
The MSS completes its		connections, including the cable pinouts
	connection or the set-up of the
power-up and boot		(see Pinouts). Try another serial device or
	serial device.
procedures, but there's		cable, or cycle power on the MSS.
no noticeable serial	A rapidly-blinking OK LED may	Reboot the unit. When the MSS is running
activity.
		normally, the OK LED blinks every two
	signal boot failure.	seconds.
	The MSS is not connected properly	Ensure that the MSS is firmly connected to
	to the Ethernet.	a functional and properly-terminated
		network node.
The terminal shows a		The MSS Ethernet address is located on
Boot> prompt rather than	The MSS Ethernet address is	the bottom of the unit. Use the Change
a Local> prompt.	invalid.	Hardware command to set the correct
		address, then reboot.
	Init Noboot command was	See Entering Commands at the Boot
	entered.	Prompt.

6-1