Oh, well that’s interesting. I concluded it was already active from this thread: How can I see if ADR (Adaptive Data Rate) is working with my end device (MultiTech’s mDot module)?
I see the fix in v2.9.3 enables data rates 4 and 5. That seems to correspond with the change between Regional Parameters v1.0 and v1.0.2, which added SF11 and SF12. Unfortunately I don’t believe mBed supports the new data rates so who knows what will happen if it’s instructed to use them! Also strange - v1.0.2 also added power levels between 20 and 30dBm, but v2.9.3 seems to ignore that part, sticking with 10 to 20.
It doesn’t seem to be related to the issue I’m seeing though, since even DR3 didn’t get invoked.
What is the mechanism that changes the DR on the second uplink? Is that orthogonal to ADR?