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Troubleshooting guides and FAQs
Learn how to debug connectivity issues and manage your SIMs.
Can I subscribe to the Status page?Yes. You can either subscriber for updates through our status page, or view directly from within our Platform.
Is the network down?Check Onomondo Status Page to see current network status.
SIM is offline and Signaling Logs / Network Logs are emptyMake sure that device settings are correct and test connectivity with AT commands.
I deactivated my SIM and activated it again, but it is not working.Check 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.
Unusual blocking of LTE-M and NB-IoT by certain carriersA couple of networks are closing LTE-M connections after they are created as a way to reject LTE-M.
My device cannot connect and I see returnError: "OperatorDeterminedBarring" in Signaling LogsReview the FPLMN list and perform a full scan to ensure optimal connectivity.
The device has attached data connection, but I am not receiving any data.Review device configuration.
I have inserted the SIM into my device, but it fails to establish a data connection.Make 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.
SIM with connector is online, but I cannot receive data.Check for server misconfigurations or missing connector passthrough settings.
Network selection & network coverage
Control the networks your devices can connect to.
Can Onomondo offer reliable connectivity in country X?You can find information on all supported networks and technologies on our Coverage Page.
Do SIMs have any priority order of networks based on signal strength?No. The SIMs are non-steered and it's up to the device to choose the first network with strong enough signal.
How does the Network List function during connection sequence?Understand the role of Network Lists during the network selection process.
Does network X support NITZ (Network Identity and Time Zone)?Onomondo does not have information on which specific networks support NITZ.
Why can I not connect to NB-IoT and/or LTE-M network(s)?Check if the network operator supports NB-IoT and/or LTE-M connections.
Can I see which band(s) my device connects via?No, this is not visible via Signaling Logs
SIM management issues
Tags & Usage
Is there a way to update multiple SIMs?You can update SIM properties by sending a PATCH request via the Onomondo API.
Does the SIM card store the FLPMN list if the network has not been whitelisted?Networks excluded from the whitelist are added to FPLMN once the module attempts to connect.
How can I disable the FPLMN function?FPLMN cannot be disabled. Consider upgrading your device firmware to avoid issues.
I cannot edit tagged SIM cards.You have to enable "write access" on the Tag first. If this is disabled, Member level users will not be able to edit SIMs.
Is it possible to create eSIM for iPhone using the Onomondo platform?No, you cannot create SIM profiles on the Onomondo platform yourself.
What are "Active SIMs" on the dashboard?"Active SIMs" indicator refers to SIMs that have been activated last month.
How can I see the network signal strength for a SIM card?Onomondo has no information about signal strength received by the device.
Is country X on my network list?Go to the Network Lists in the Onomondo App and click the "edit" button to view / add / remove networks from the list.
How to bulk update SIMs?
Toggling Technologies on a SIMYou can change which cellular technologies the network will allow the device to connect to.
Why can I not see historical SIM data in the Onomondo app?Usage records, Network Logs, and Signaling Logs are stored for no longer than 90 days.
Why does AT+COPS return previously rejected network as "available"?FPLMN is not always updated after a single rejection or failure to register.
AT+CGREG: Modes, parameters, and examplesThis article is a practical overview of how to use the AT+CGREG command.
AT+CEREG: Modes, parameters, and examplesThis article is a practical overview of how to use the AT+CEREG command.
AT+COPS: Modes, parameters, and examplesThis article is a practical overview of how to use the command.
Why you shouldn’t tell your IoT modems to attach/detachUsing AT+COPS=0 and AT+COPS=2 to attach / detach modems to / from the network is often a bad idea.
User access issues
Having trouble logging into the app?
I cannot log in to the Onomondo app.Clear your browser data and/or reset your password.