Lantronix XPress-DR-IAP Guía de usuario descargar pdf (Pagina 92)

Troubleshooting

Problem/Message Reason Solution

No LEDs are lit. The unit or its power supply is

damaged.

Change power supplies.

The device server will not

power up properly, and the

LEDs are flashing.

Various Consult the LEDs section in the

Introduction chapter or the Quick

Start for the LED flashing

sequence patterns. Call Lantronix

Technical Support if the blinking

pattern indicates a critical error.

The device server is not

communicating with the serial

device it is attached to.

The most likely reason is the

wrong serial settings were

chosen.

The serial settings for the serial

device and the device server must

match. The default serial settings

for the device server are RS232,

9600 Baud, 8 Character Bits, No

Parity, 1 Stop Bit, No Flow

Control.

When you try to enter the setup

mode on the device server via

the serial port, you get no

response.

The issue will most likely be

something covered in the

previous problem, or possibly

you have Caps Lock on.

Double-check everything in the

problem above. Confirm that

Caps Lock is not on.

You can ping the device server,

but not Telnet to the device

server on port 9999.

There may be an IP address

conflict on your network

You are not Telneting to port

9999.

The Telnet configuration port

(9999) is disabled within the

device server security settings.

A network device, such as a

router, is blocking port 9999.

Turn the device server off and

then issue the following

commands at the DOS prompt of

your computer: ARP -D X.X.X.X

(X.X.X.X is the IP of the device

server)

PING X.X.X.X (X.X.X.X is the IP

of the device server).

If you get a response, then there

is a duplicate IP address on the

network (the LEDs on the device

server should flash a sequence

that tells you this). If you do not

get a response, use the serial port

to verify that Telnet is not

disabled.

With Device Installer you get

the “Wrong Password” error

when you try to upgrade the

firmware.

You have chosen the incorrect

setting for the Existing

Firmware field.

Try upgrading the firmware again,

but make sure to use the correct

setting in the field of Existing

Firmware field.

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