Does ADR require the use of confirmed uplinks?

For that uplink an online decoder shows it has its ADR bit set.

For the downlink it shows you’re seeing two LinkADRReq MAC commands in FOpts: 0340020071 and 033500FF01. This is unrelated to the topic at hand, but indeed related to ADR: see LMIC Library Always Does Unwanted Downlink.

I’d expect you can disable those LinkADRReq MAC commands by using LMIC_setAdrMode(0).

All said, the Dragino-LG02 is not a compliant LoRaWAN gateway, so you’re into many surprises, and you might even harm other network users in your neighbourhood by connecting that to a LoRaWAN network. You wrote you’re on some private network, maybe they allow/support that. But please don’t use that on TTN, not even for debugging.

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