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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 serial port while diagnosing an error so you can
view summary messages that may display. When troubleshooting, always ensure
that the physical connections (power cable, network cable, and serial cable) are
secure.
Note: Some unexplained errors might be caused by duplicate IP addresses on the
network. Make sure that your unit's IP address is unique.
LEDs
The UDS products contain the following LEDs, which help you diagnose problems.
10 Mbps Link/Activity (green)
100 Mbps Link/Activity (green)
Collisions
Diagnostics (red)
Status (yellow)
Simultaneously lit red and green LEDs mean something is wrong. If the red LED is lit
or blinking, count the number of times the green LED blinks between its pauses. The
following table explains the LED functions: