Hi @davo30au and @dbrosy, I replied to you yesterday but I can’t see my posts on this thread, so trying again…
In addition to @arjanvanb’s reply,
AU915 UDP gateways should point to au915.thethings.meshed.com.au
AS923 UDP gateways should point to as923.thethings.meshed.com.au
AU915 and AS923 MQTT (and other) gateways should point to thethings.meshed.com.au (or router.au.thethings.network)
Nothing has changed in this respect, but the recent (8-Jul) upgrade means that incorrectly configured gateways will end up with the wrong downlink frequencies, hence why joins will fail.
Running ttnctl gateways info might show the incorrect band plan for your gateway. Don’t worry about this, it is incorrect. It’s because ttnctl doesn’t support the new V3 gateway offloader completely.