10: Troubleshooting
WiPort® NR Embedded Device Server User Guide
70
Problem/Message
Reason
Solution
logical subnet.
You did not choose the correct
subnet mask.
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 via 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.