Milesight AM102 - downlink command

Hello Community,
I am struggle “downlink” issue.
I am trying to change time interval - send downlink on port 85 with value ff033C00 - suppose to change to 1 minute interval
But time didnt change. :frowning: This work on TTN - but i prefer and like chirpstack :slight_smile: )
I have change rx2_prefer_on_link_budget from false to true.
But it not helps :frowning:
So wondering what else i can change ?

Any idea ?

Case closed, i had Redis in version 5. updated it to 7. and it works.
What is interesting , Dragino LHT52 works also with Redis 5.