Installation guide

APPENDIX A: Troubleshooting

This chapter covers potential problems and the corresponding remedies.

A.1 Using LEDs to Diagnose Problems

The LEDs are useful aides for finding possible problem causes.

A.1.1 Power LED

The PWR LED on the front panel does not light up.

Steps Corrective Action

1 Make sure that the Dis

Master’s power adaptor is connected to the

device and plugged in to an appropriate power source. Use only the

supplied power adaptor.

2 Check that the Dis

Master and the power source are both turned on

and the device is receiving sufficient power.

3 Check the power

ack and verify.

4 Press the button and holds for 5 seconds to turn ON the device.

5 If the error persists, you may have a hardware problem. In this

case, you should contact your vendor.

A.1.2 LED Link

The LAN LED on the front panel does not light up.

Steps Corrective Action

1 Check the Ethernet cable connections between the Dis

Master and

the computer or hub.

2 Check for faulty Ethernet cables.

3 Make sure your computer’s Ethernet card is workin

properly.

4 If these steps fail to correct the problem, contact your local

distributor for assistance.

A.2 Login: Username and Password

I forgot my login username and/or password.

Steps Corrective

ction

1 If you have chan

ed the password and have now for

otten it, you

will need to upload the default confi

uration file. This will erase all

custom confi

urations and restore all of the factory defaults

including the password.

2 Before you confi

ure this device you need to know the followin

default settings:

 Username: sysadmin