LTE/GSM modem troubleshooting

Diagnostic task

This test requires the RBRcervello to have an activated SIM-card installed in the LTE/GSM modem as described in Telemetry. If LTE/GSM is not going to be used in this deployment, this test can be omitted.

After finishing the previous test, wait for the "RBRcervello>" prompt to appear again. Type "diagnose gsm" and press enter. The LTE/GSM test will wait for any ongoing communication to finish and will diagnose the connection to the internet via the LTE/GSM modem.

TEXT

RBRcervello> diagnose gsm
Checking deployment status...
Stopping services...
Waiting for publisher to terminate...
Stopping periodic command scheduler: cron.
Starting GSM test
I think the GSM modem is on /dev/ttyS4 at 230400 baud.
Waiting for the modem to come up...
Modem is up.
Waiting for PPP connection to the modem...
Established PPP connection to the modem. Modem identifiers:
IMEI: 867698099999999
IMSI: 302720599999999
ICCID: 89302720512345678987
Waiting for the modem to connect to the GSM network....
Reconnecting for Internet access (1/2)...
Bringing PPP connection down...
Bringing PPP connection back up...
Waiting for the PPP connection to become the default route
Making sure we can access the web...
The modem connection is up.
Brought the gsm connection up successfully.
/usr/local/wirewalker-controller/diagnostics/../publisher/modes/gsm/netpty/bin/netpty:
socket was closed
messages-read: no process found
netpty: no process found
The serial link has been brought down.
Powering off the modem.
Restarting services...
Starting periodic command scheduler: cron.
RBRcervello>

Failure, bad SIM-card

CODE

RBRcervello> diagnose gsm
Checking deployment status...
Stopping services...
Waiting for publisher to terminate...
Stopping periodic command scheduler: cron.
Starting GSM test
I think the GSM modem is on /dev/ttyS4 at 230400 baud.
Waiting for the modem to come up...
Modem is up.
Waiting for PPP connection to the modem...
Established PPP connection to the modem. Modem identifiers:
IMEI: N/A
IMSI: N/A
ICCID: N/A
Waiting for the modem to connect to the GSM
network.....................................................Hit the connection timeout!
Giving up.
Test failure: failed to bring up connection!
/usr/bin/poff: No pppd is running. None stopped.
messages-read: no process found
netpty: no process found
The serial link has been brought down.
Powering off the modem.
Restarting services...
Starting periodic command scheduler: cron.
RBRcervello>

If so, remove and re-insert the SIM card in the tray in the SIM1 position, as explained in the Telemetry section.