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Troubleshooting and Contact Information UDS10/UDS100 User Guide
48
Problem/Message Reason Solution
The UDS is not communicating with
the serial device attached to the UDS.
The most likely reason is the wrong
serial cable or serial settings were
chosen.
Make sure that you are using the
correct serial cable. The UDS serial
port is just like a modem serial port
(DCE). The serial settings for the
serial device and the UDS must
match.
The default serial settings for the
UDS are RS232, 9600 baud, 8
character bits, no parity, 1 stop bit,
no flow control.
When you try to enter Setup Mode on
the UDS using the serial cable, you
get no response.
The issue is 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 UDS, but not Telnet
to the UDS 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 UDS security
settings.
The unit may have the correct IP
address, but an incorrect gateway
address.
Turn the UDS 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 UDS)
PING X.X.X.X (X.X.X.X is the IP of
the UDS).
If you get a response, then there is a
duplicate IP address on the network
(the LEDs on the UDS 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 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.