Connectivity issues
What to do if the device can't come online.
By Jakub and 5 others6 authors21 articles
- Is the network down?Check Onomondo Status Page to see current network status.
- SIM is offline and Network Logs / Signaling Logs are emptyMake sure that device settings are correct, FPLMN is clear, and test connectivity with AT commands.
- I deactivated my SIM and activated it again, but it is not workingCheck and clear the FPLMN list on the SIM.
- When a SIM suddenly drops offline, what can we do besides restarting the device?Having Fallback strategies ensures higher uptime.
- Why is my device connecting to 4G and GSM simultaneously?Your device is connecting to two different sides of the network for different purposes.
- My device cannot connect and I see returnError: "OperatorDeterminedBarring" in Signaling LogsReview the FPLMN list and perform a full scan to ensure optimal connectivity.
- I have inserted the SIM into my device, but it fails to establish a data connectionMake sure that APN, data roaming, and network registration settings are correct.
- My device cannot connect to the network after crossing country borders.Ensure optimal device configuration for the current country.
- My LTE-M / NB-IoT device is attempting to come online, but I do not see any Network Logs.Check if LTE-M / NB-IoT is available in your country and adjust device settings if needed.
- My device cannot connect on LTE-M / NB-IoT and there are no Network LogsCheck your device configuration and timeout settings for optimal connectivity
- How do I get my device to register on GSM?Check GSM registration status on the device with AT+CREG? command.
- What happens if a device attaches and detaches again and again?Loops of "attached data connection" and "detached data connection" indicate normal and expected behavior.
- How many bearers can my modem open simutaneously on Onomondo's network?Onomondo only allows one concurrent bearer open at a time. Make sure that the modem does not try to open multiple bearers
- My device cannot enter PSM / eDRX modeCheck availability and determine whether the network is rejecting access to the feature.
- Device is online on platform but does not respond to my pingYour device is not responding because it is configured not to answer pings or has down a hard shut down
- My device disconnects randomly and frequently, despite stable data sessionsUpdate device configuration to ensure more stable connectivity.
- What does Modify Bearer Request / Response mean?A Modify Bearer Request / Response updates LTE data paths and QoS settings during an ongoing session, like during handover or policy change.
- What is a "Purge" request in cellular signaling?A "Purge" request is a network signal indicating that a device has become inactive.
- SIM is offline and I see “Not allowed (...): sms_disabled” in the Network LogsSMS needs to be enabled to let the SIM connect over GSM, even if your device doesn’t use SMS.
- What does "Cancel Location" mean in signaling?It is a message sent to the local operator to remove the subscriber’s current location.
- I am having issues with my Teltonika device.Reach out to Teltonika support team.