MPM-1000A Operator Manual
1000-7075 Rev E
13-5
Table 13-2 General Troubleshooting
(Cont’d)
Symptom
Description
Probable Cause
Corrective Action
Unable to Transmit
and Receive.
Open System Configuration page and
recheck system parameters.
Check to see if the Modem has been
logged off the satellite network, if logged
off re-enter the active network.
Check to see if the Modem is enabled to
transmit, if not enable.
Check to see if your Transmit and Receive
equipment is OK.
Check HCI Frequency Standard as internal
reference selected.
NC Modem fails
to acquire its
own RFOW.
NC unable to
gain an RFOW
value.
Incorrect system
parameters.
Faulty system
components.
Ensure correct system parameters entered
on the System Page.
Ensure the transmit and receive chain
components are enabled, and the antenna
is pointed properly.
NM receives
“login denied”
message to a
login request.
Unable to log
into the network.
Incorrect system
parameters.
Ensure that the node name (on the
Network Centric Parameters page) is
unique. It must not match the name of any
other node in the network.
Ensure that the Data Port IP address (on
the Network page) is unique. It must not
match the IP address of any other node in
the network.
Login Denied.
NM terminal
login has been
denied by the
NC.
Incorrect system
parameters.
Log the terminal out of the network and re-
enter the network.
Check if another terminal has the same
Node Name.
Transmit
TRANSEC
Failure.
Transmit
TRANSEC
Failure status
reported in TX
Burst Status.
Terminal settings
zeroized either
locally or by the
NC.
Reload all system parameters on the HCI
TRANSEC page and Cycle power.
Receive
TRANSEC
Failure.
Receive
TRANSEC
Failure status
reported in Rx
Burst Status.
Terminal settings
zeroized either
locally or by the
NC.
Reload all system parameters on the HCI
TRANSEC page and cycle power.
Future MSK with
given Rollover
Date Time not
valid.
System reports
invalid MSK.
Attempt to submit
invalid Future MSK
Rollover
Date/Time.
Reset MSK Pass Phrase.
Check the date and time of computer is in
range of generated MSK key.