Lantronix XPort User Manual

Troubleshooting
Problem/Message Reason Solution
1 Stop Bit, No Flow Control.
When you try to enter the setup
mode on the 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 server, but not
Telnet to the 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
server security settings.
Turn the 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 server)
PING X.X.X.X (X.X.X.X is the IP
of the server).
If you get a response, then there
is a duplicate IP address on the
network (the LEDs on the 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.
The server appears to be set up
correctly, but you are not
communicating with your device
attached to the server across
the network.
If you are sure that the serial port
setting is correct, then you may
not be connecting to the correct
socket of the server.
Another possibility is that the
server is not set up correctly to
make a good socket connection
to the network.
You can check to see whether
there is a socket connection to or
from the server by looking at the
Status LED, if CP1 has been
configured for LED1 functionality.
If the Status LED 1 is blinking
consistently, or is completely off,
then there is a good socket
connection.
If the Status LED 1 is solid green,
then the socket connection does
not exist. Use the Connect Mode
option C0 for making a connection
to the server from the network.
Use Connect Mode option C1 or
C5 for a connection to the
network from the server. See the
full list of Connect Mode Options
in the Binary to Hexadecimal
chapter.
When connecting to the Web-
Manager within the server, the
message “No Connection With
The server” displays.
Your computer is not able to
connect to port 30718 (77FEh)
on the server.
Make sure that port 30718
(77FEh) is not blocked with any
router that you are using on the
network. Also make sure that port
77FEh is not disabled within the
Security settings of the server.
XPort™ User Manual and Development Kit 7-3

Lantronix XPort Specifications

General

Data Link Protocol	Ethernet, Fast Ethernet
Connectivity Technology	Wired
Form Factor	Embedded
Category	Embedded Systems
Interface	Serial
Serial Ports	1
Operating Temperature	0°C to 70°C