
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 problem after following these instructions,
please contact Technical Support for further assistance.
PROBLEM CAUSE SOLUTION
AllLEDsonthe
LocalExtender
are off.
•TheLocalExtender is not
receiving power from the USB
portorthe(optional)Local
Extender AC adapter.
1. Ensure that the USB connection between the
LocalExtender and host computer is properly
installed.
2. Move the USB connector to another USB port
on the host computer.
AllLEDson
theRemote
Extender are off.
•TheRemoteExtender is not
receiving power from the AC
adapter.
1. Ensure that the AC power adapter is properly
connectedtotheRemoteExtender.
2. Check that the AC adapter is connected to a live
source of electrical power.
StatusLEDson
boththeLocal
andRemote
Extenders are
blinking.
•Thereisnoconnectionbetween
theLocalExtender andRemote
Extender.
•TheLocalExtender is not
connected to a USB 3.0 port.
•Thehostcomputerdoesnot
support USB 3.0
1. Ensure that the host computer supports USB 3.0,
refer to manual for the computer to confirm.
2.EnsuretheLocalExtender is connected to a USB
3.0 port. The centre of the port should be blue.
Another colour, such as black usually indicates a
USB 2.0 port.
3. Ensure that a multimode fiber optic cable with
crossoverisconnectedbetweentheLocaland
RemoteExtenders.
4. Connect a fiber optic crossover patch cord
betweentheLocalandRemoteExtenders.
Recheckoperationofthesystem.
StatusLEDisoff
on one or both
units.
•The computer went into
suspend, hibernate or sleep
mode.
•The computer tried to suspend
theUSB3.0portthattheLocal
Extender is connected to.
1.PowercycletheRemoteExtender and the
devicesconnectedtheRemoteExtender.
2.PowercycletheLocalandRemoteExtenders,
andthedevicesconnectedtotheREX.
3. Follow the steps in“Preparing Your Computer” on
page 7 to disable suspend modes on your
computer.Refertoyouroperatingsystem’s
manual for additional instructions if necessary.
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