17
Troubleshooting
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 problems after following these instructions, please
contact Icron Technical Support by visiting
and create an online Support Ticket for further
assistance.
PROBLEM
CAUSE
SOLUTION
All the LEDs are
OFF on the LEX
and/or REX.
»
The LEX and/or REX unit is not
receiving power from the AC
power adapter.
5. Ensure that the AC power adapter is properly
connected to the LEX and/or REX.
6. Check that the AC adapter is properly connected to
a live source of AC power. Check if the LEX and/or
REX Power LED is illuminated.
Power LED is ON,
Status LED is OFF.
»
The unit has malfunctioned and
requires re-programming.
1. For assistance, contact Technical Support at
Link LEDs on the
LEX and the REX
are OFF.
»
There is no connection between
the LEX and REX units.
1. Ensure no more than 100m of CAT 6a/7 cabling is
connected between the LEX and REX.
2. Connect a short patch cable between the LEX and
REX. Recheck the Link status. If the Link LED is
now SOLID ON, the previous cable is defective or
not capable of supporting the link.
Link LEDs on the
LEX and REX are
SOLID ON, but the
USB 2 and USB 3
LEDs are OFF.
»
The host computer is not
powered on.
»
The LEX is not connected to a
computer.
»
The host computer does not
support USB Hubs.
»
The unit is malfunctioning.
1. Disconnect all USB devices from the REX.
2. Disconnect LEX from the host computer.
3. Disconnect AC adapters from LEX and REX.
4. Reconnect the LEX to the host computer.
5. Reconnect the AC adapters to the LEX and REX.
6. Check that the LEX and REX have enumerated as
USB hubs in Windows Device Manager, macOS
System Profiler or using “Isusb” command in a
Linux Terminal.
7. If the problem is not resolved, contact Technical
Support at
