Looking at the rssi value of your successful transmissions you are at the very edge of the gateways coverage. Moving the node or antenna or a change in other conditions (you standing between the node and the gateway) could cause this.
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Looking at the rssi value of your successful transmissions you are at the very edge of the gateways coverage. Moving the node or antenna or a change in other conditions (you standing between the node and the gateway) could cause this.