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11: Troubleshooting and Contact Information
Problem/Message Reason Solution
The device server is not
communicating with the serial
device to which it is attached.
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 RS-232,
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 using the
serial port, you get no response.
The issue is most likely
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.
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. If you do not get a
response, use the serial port to
verify that Telnet is not disabled.
With DeviceInstaller, you get the
"Wrong Password" error when you
try to upgrade the firmware.
The file you are attempting
to load is the incorrect
firmware file for the UDS.
Download the correct firmware file
from the Lantronix website.
The device server appears to be set
up correctly, but you are not
communicating with your device
attached to the device 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 device server.
Another possibility is that
the device server is not set
up correctly to make a good
socket connection to the
network.
Use the Connect Mode option C0
for making a connection to the
UDS from the network. Use
Connect Mode option C1 or C5 for
a connection to the network from
the UDS.
When connecting to the Web
Manager within the device server,
the "No Connection With The
Device Server" message displays.
Your computer is not able to
connect to port 30718
(77FEh) on the device
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 device
server.
UDS2100 User Guide 70