Lantronix LPS1-2, MPS100, LPS1-T manual Power-up Troubleshooting

B: Troubleshooting

This Appendix discusses how to diagnose and fix errors quickly yourself without having to contact a dealer or Lantronix. It will help to connect a terminal to the serial port while diagnosing an error to view any summary messages that are 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 MPS to a wired Ethernet network to verify that it is working properly and to check the wireless settings.

Note: Some unexplained errors may be caused by duplicate IP addresses on

the network. Make sure that your MPS IP address is unique.

B.1 Power-up Troubleshooting

There are several possible error situations if the LEDs do not flash.

Table B-1:Error Messages

Message	Diagnosis/Remedy
Power-up diagnostic failure (hardware	Note which LED is blinking and its color, then contact
failure)	your dealer or Lantronix Technical Support.
The MPS boots but does not try to load	Press the Test/Reset button. A brief description of the
the Flash ROM code	problem will be queued to the parallel port and printed.
Network Error: The ACT LED will	A. Make sure the Ethernet network cable is properly
blink yellow 2-3 times per second	connected and reboot the MPS.
	B. If option A fails to resolve the problem, reload
	Flash ROM. Refer to Appendix D.

B-1