Problem sending from device to the gateway via TTN

[descartes (Nick McCloud)]

As above, Single Channel Packet Forwarders are not gateways, closing.

Single Channel Packet Forwarders (SCPF) are obsolete and not supported

Single channel packet forwarders are obsolete and are not supported Single Channel in this article refers to both Single Channel and Dual Channel devices (and any variations thereof). Single Channel Packet Forwarders are not LoRaWAN compliant gateways. They negatively impact proper operation of gateways and end devices (nodes) in their area which means they negatively impact The Things Network and its users, but they also impact other LoRaWAN operators. Not only now, but also in the future w…

PS, good effort on the detail though!

PSS, you don’t send to the gateway, the device transmits, one or more gateways hear, there is no logical connection created between device & gateway.