Troubleshooting Guide
The following table provides troubleshooting tips. The topics are arranged in the order in which they should
be executed, in most situations. If you are unable to resolve the problem after following these instructions,
please contact Technical Support for further assistance.
PROBLEM
CAUSE
SOLUTION
All LEDs on LEX
are off.
•
The LEX is not receiving power
from the power adapter.
1. Ensure that the power adapter is properly
connected to the LEX.
2. Check that the power adapter is connected to a
live source of electrical power.
All LEDs on REX
are off.
•
The REX is not receiving power
from the power adapter.
1. Ensure that the power adapter is properly
connected to the REX.
2. Check that the power adapter is connected to a
live source of electrical power.
Link LEDs on
LEX and REX are
off.
•
There is no connection between
the LEX and REX.
1. Ensure a CAT 5e/6/7 cable is connected between
the LEX and REX. Ensure CAT 5e UTP or better
cabling with conductor RJ45 connectors is used.
2. Connect a short CAT 5e/6/7 patch cord between
the LEX and REX to determine if the original CAT
cable is defective.
3. Ensure the CAT 5e/6/7 cable is as straight as
possible (i.e. not coiled).
Link LED on LEX
is on, USB LED
on LEX is off.
•
The host computer is not
powered on.
•
The LEX is not connected to the
computer.
•
The computer does not support
USB hubs.
•
The unit is malfunctioning.
•
The USB cable is defective.
1. Disconnect all USB devices from the REX.
2. Disconnect the LEX from the computer.
3. Disconnect the LEX and REX from the power
adapters.
4. Reconnect the USB device(s) to the REX.
5. Reconnect the LEX to the computer.
6. Reconnect the LEX to the power adapter.
7. Reconnect the REX to the power adapter.
8. If the USB LED continues to stay off, contact
Technical Support.
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