Troubleshooting, Regulatory compliance – Muxlab USB 2.0 4-Port Extender Kit User Manual

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USB 2.0 4-Port Extender Kit

Installation Guide

8. Troubleshooting

The following table describes some of the symptoms, probable causes and possible solutions in
respect to the installation of the USB 2.0 4-Port Extender kit.

Table -1 Troubleshooting tips

Problem

Cause

Solution

The USB device is
attached but not
functioning.

• The USB device requires

drivers that were not
installed.

• The USB device does not

support USB hubs.

• The USB device might be

failed.

1. Install the required USB device driver on the

computer operating system before plug in the
USB device to the receiver. Access your USB
device’s manufacturer’s Web site for detail info.

2. In the Universal Serial Bus (USB) controllers

section of Device Manager, check if the USB
device is listed.

The USB device is
attached but not
functioning.

• An over current condition

has occurred because
the USB device is
drawing more than
500mA (USB spec.).
The operating systems
may pop up to indicate
an issue.

1. Unplug the power adapter from the receiver,

wait approximately 30 seconds; plug the power
adapter into receiver again.

2. If over current keeps occurring, either the USB

device may use more power than the USB
specification, or the USB device may be
damaged.

3. Consult your USB device documentation and

plug into your USB device with the required
power adapter.

Activity LED on
transmitter or receiver
blinks intermittently.

• The Cat. 5 cable

connecting the
transmitter and receiver
is faulty.

1. Make sure the Cat.5 cable is good.
2. Try to use a different Cat.5 cable to connect

transmitter and receiver.

Activity LED on
transmitter or receiver
is off.

• The receiver is not

powered.

• The transmitter is not

powered.

• The link cable failed or is

damaged.

• The extender is not

working.

1. Confirm that the host PC is on and providing

power to the transmitter.

2. Make sure the supplied AC power adapters are

properly connected to the transmitter or receiver.

3. Make sure the Cat5 cabling between transmitter

and receiver is properly installed or replace the
link cable.

4. Check that the power adapter is connected and

working.

If you still cannot diagnose the problem, please call MuxLab Customer Technical Support at
877-689-5228 (toll-free in North America) or (+1) 514-905-0588 (International).