Specifications

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Chapter 4: Troubleshooting

4. Troubleshooting

4.1 Problems/Causes/Solutions

The Problems/Solutions are arranged in the order that they should be executed in most situations. If you are unable to resolve the

problem after following these instructions, contact Black Box Technical Support for further assistance.

Table 4-1. Problems/Causes/Solutions.

Problem Cause Solution

All LEDs on the local The local unit is not 1. Make sure that the AC adapter is properly connected to

unit are off. receiving power from the local and host computer is properly installed.

local unit AC adapter. 2. Check that the AC adapter is connected to a live source

of electrical power.

All LEDs on the remote unit The remote unit is not 1. Make sure that the CAT5 cabling from local unit to

unit are off. receiving power over the remote unit is properly installed.

CAT5 link. 2. Check that the AC adapter on the local unit is

connected to a live source of electrical power. Check

that the local unit power LED is lit.

Link LEDs on the local unit There is no connection 1. Make sure that CAT5 cable is connected between the

and remote unit are off. between the local unit local unit and the remote unit.

and the remote unit. CAT5 or better cable, UTP with a straight through

connector and no crossovers, and 8 connector RJ-45

connectors should be used at both ends.

2. If the CAT5 cable is defective, connect a short CAT5

patch cord between the local unit and the remote unit to

determine if the original CAT5 cable is defective.

Link LED for RJ-45 on the 1. The host computer is not 1. Disconnect all USB devices from the remote unit.

local unit is on, Host LED powered on.

on the local unit is off. 2. Disconnect the local unit from the computer.

2. The local unit is not

not connected to the 3. Disconnect the local unit from the AC power

computer. adapter.

3. The computer does not 4. Reconnect the local unit to the AC power adapter.

support USB hubs.

5. Reconnect the remote unit to the computer.

4. The extender is

malfunctioning. 6. In the Universal Serial Bus Controllers section of Device

Manager, check that the extender is recognized as a

“Generic USB Hub.”