Icron USB Extender Mounting Kit for Ranger 2301 and 2312 (Silver) - Manual (Page 15)

14
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 Icron Technologies’
Technical Support for further assistance.
PROBLEM CAUSE SOLUTION
All LEDs on the
LEX are off. • The LEX is not receiving power
from the USB port. 1. Ensure that the host computer is connected to
the LEX.
2. Move the USB connector to another USB port
on the host computer.
All LEDs on the
REX are off. • The REX is not receiving power
from the AC adapter. 1. Ensure that the AC power adapter is properly
connected to the REX.
2. Check that the AC adapter is connected to a live
source of electrical power. Check that the REX’s
power LED is illuminated.
Link LEDs on the
LEX and REX are
off. • There is no connection between
the LEX and REX. 1. Ensure the CAT 5e/6/7 cable is connected
between the LEX and REX units; cable should be
UTP or STP, with a straight through connector
and no crossovers, and 8 conductor RJ45
connectors are used at both ends.
2. Connect a short CAT 5e/6/7 patch cord between
the LEX and REX to determine if the original
CAT 5e/6/7 cable is defective.
Link LEDs are
blinking. • There is no connection between
the LEX and REX.
• Units may not be paired to each
other.
• Network switches exist on
different subnets.
• Network switch(es) are blocking
traffic from the extenders.
1. Ensure both the LEX and REX are connected
together directly or are connected to active
network switches.
2. Re-pair the units together.
3. Ensure the network switches can communicate
with each other and are on the same subnet.
4. Ensure the network switches are not blocking
traffic from the extenders either based on MAC
address or due to traffic patterns.
5. Consult with your network administrator.