12: Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Problem/Message

 

 

Reason

 

 

Solution

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The device server may not be

 

 

Make sure that the Link LED is

 

 

 

 

 

 

plugged into the network

 

 

lit. If the Link LED is not lit, then

 

 

 

 

 

 

properly.

 

 

the device server is not properly

 

 

 

 

 

 

 

 

 

plugged into the network.

 

 

 

When you try to assign an IP

 

 

The cause is most likely one of

 

 

Double-check the parameters

 

 

 

with DeviceInstaller, you get the

 

 

the following:

 

 

that you specified.

 

 

 

following :

 

 

 

 

 

Note: You cannot assign an IP

 

 

 

 

 

 

The hardware address you

 

 

address to a device server

 

 

 

"No response from device!

 

 

specified is incorrect.

 

 

through a router.

 

 

 

Verify the IP, Hardware

 

 

 

 

 

 

 

 

 

 

Address and Network Class.

 

 

The IP address you are trying to

 

 

 

 

 

 

 

Please try again."

 

 

assign is not a valid IP for your

 

 

 

 

 

 

 

 

 

 

logical subnet.

 

 

 

 

 

 

 

 

 

 

You did not choose the correct

 

 

 

 

 

 

 

 

 

 

subnet mask.

 

 

 

 

 

 

 

The device server is not

 

 

The most likely reason is the

 

 

The serial settings for the serial

 

 

 

communicating with the serial

 

 

wrong serial settings were

 

 

device and the device server

 

 

 

device to which it is attached.

 

 

chosen.

 

 

must match. The default serial

 

 

 

 

 

 

 

 

 

settings for the device server

 

 

 

 

 

 

 

 

 

are RS-232, 9600 baud, 8

 

 

 

 

 

 

 

 

 

character bits, no parity, 1 stop

 

 

 

 

 

 

 

 

 

bit, no flow control.

 

 

 

When you try to enter the setup

 

 

The issue is most likely

 

 

Double-check everything in the

 

 

 

mode on the device server

 

 

something covered in the

 

 

problem above. Confirm that

 

 

 

using the serial port, you get no

 

 

previous problem, or possibly,

 

 

Caps Lock is not on.

 

 

 

response.

 

 

you have Caps Lock on.

 

 

 

 

 

 

 

You can ping the device server,

 

 

There may be an IP address

 

 

Turn the device server off and

 

 

 

but not Telnet to the device

 

 

conflict on your network

 

 

then issue the following

 

 

 

server on port 9999.

 

 

 

 

 

commands at the DOS prompt

 

 

 

 

 

 

You are not Telneting to port

 

 

of your computer:

 

 

 

 

 

9999.

 

 

ARP -D X.X.X.X (X.X.X.X is the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Telnet configuration port

 

 

IP of the device server).

 

 

 

 

 

 

(9999) is disabled within the

 

 

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

 

 

 

 

 

 

device server security settings.

 

 

 

 

 

 

 

 

 

 

 

of the device server).

 

 

 

 

 

 

 

 

 

If you get a response, then

 

 

 

 

 

 

 

 

 

there is a duplicate IP address

 

 

 

 

 

 

 

 

 

on the network. If you do not

 

 

 

 

 

 

 

 

 

get a response, use the serial

 

 

 

 

 

 

 

 

 

port to verify that Telnet is not

 

 

 

 

 

 

 

 

 

disabled.

 

 

 

 

 

 

 

 

 

 

 

 

Micro125 User Guide

70

Page 70
Image 70
Lantronix 900-588 manual Troubleshooting, Caps Lock is not on