Hello,
Thank you for the troubleshoot file.
If you are sure that you are using the correct APN, could you navigate to Network → Interfaces → General, edit the mobile interface, and change the PDP type to IPv4/IPv6?
I will also ask you to lock the device to LTE-only mode by navigating to Network → Mobile → General settings. Select the network type as LTE-only.
It seems like the issue at the moment, is that the carrier does not provide an IPv4 address. Could you clarify if you have a private network? Or are you just using a standard IoT network?
If the first two suggestions do not help, please generate another troubleshoot file.
Best regards,
DaumantasG