Followup: After lot´s of debugging we catched one case. This is the gateway traffic:

this is the device traffic:

The platform was running for hours without any issue, but suddenly lot´s of data got lost in the backend.
Any explanation for this?
Followup: After lot´s of debugging we catched one case. This is the gateway traffic:

this is the device traffic:

The platform was running for hours without any issue, but suddenly lot´s of data got lost in the backend.
Any explanation for this?