User Manual

Chapter 5: Maintenance and troubleshooting
98-148232-B Troubleshooting 80
The web interface
shows
Not registered.
The EXPLORER 540 cannot
register on the BGAN
network.
Check that your SIM card is valid
for communication on the BGAN
network.
Check your subscription with the
Airtime Provider.
The web interface
shows
External control.
The EXPLORER 540 is
currently controlled by an
external application, e.g.
LaunchPad or an AT
command interface.
If you want to use the built-in web
interface, stop the external
application and restart the
EXPLORER 540. Then open your
browser and access the web
interface.
The EXPLORER 540
cannot obtain its
position using GNSS.
There is no GNSS signal, or
the signal is weak.
If the EXPLORER 540 has not
been used recently within the
same location, it can take up
to 10 minutes to obtain the
position.
Check the position status in the
web interface.
To help the EXPLORER 540 obtain
position fix, it should be placed
flat on an even surface pointing
straight upwards, with a clear view
to as much of the sky as possible.
When the EXPLORER 540 has
obtained position fix, you can
point the antenna towards the
BGAN satellite.
No signal or weak signal
from the BGAN satellite.
The view to the satellite is
blocked.
Make sure the EXPLORER 540 has
a clear view to the satellite. Be
aware that window glass may
reduce the signal level.
The antenna is pointed in the
wrong direction.
Check that the antenna is pointed
according to the position data.
Adjust the position to the highest
possible signal strength.
Connection to the
Internet cannot be
established.
The signal strength is too low. Check that the antenna is pointed
according to the position data.
Adjust the position to the highest
signal strength you can obtain.
As a rule of thumb, you should
have a a signal strength of
45 dBHz or more to be able to
make a call or data session.
Problem Possible cause Remedy