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3.3
TROUBLESHOOTING
SYMPTOM
No lights on the NTWB1
Can not see the
'Madman xxxx' SSID in
my available networks
list.
No NMEA data being
received on my WiFi
device
Chapter 3
Operation
CAUSE
Power not
switched on.
NTWB1 is in
Sleep Mode
(power saving
mode)
Reverse polarity
connection.
No power etc.
Out of WiFi
range.
WiFi device
'glitch'
Not connected to
NTWB1's
network
No NMEA to
NTWB1
App or software
incorrectly
configured
TCP connection
already exists
16
REMEDY
Turn on the 12V supply to the
NTWB1
Nothing need be done. The NTWB1
will wake up automatically every 5
minutes or as soon as NMEA data is
received through the wired
connection.
Check that +12V is going to the red
wire and 0V (negative) is connected
to the black wire. If not, simply swap
the connections. The internal fuse
will reset automatically.
Refer to the 'No lights on the NTWB1'
section above
Move your WiFi device closer to the
NTWB1 to be within signal range.
Try cycling the power or resetting
your WiFi device if the NTWB1 is
powered up (with lights on or
flashing) and the SSID doesn't show
up.
Ensure the network your WiFi device
is connected to is actually the
NTWB1.
Check that the orange light is flashing
on the NTWB1 which indicates it is
receiving data.
Ensure your app or software is
listening to 169.254.1.1:55555
If one device is already connected
with a TCP connection then no other
devices will receive data (unless using
a repeater such as OpenCPN)
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