Hello Jac,
the update on last seen happens precisely every 2 minutes (3x2min = 6min … could be the explanation) in my local_conf.json I use this setting:
/* adjust the following parameters for your network */
“keepalive_interval”: 30,
“stat_interval”: 120,
“push_timeout_ms”: 100,
At least I ordered the 868MHz Version - but there is no info neither on the device nor on the packaging .
As Lora-Device I use a Mini-Ultra-Ultra-Pro3 with Radio from Rocketscream which works fine with TTN but never uses MY gateway but others (see metadata).
KR Bernd