I had masternode and I've changed VPS (IP address)
Do I need to re setup masternode?
I've changed IP address in masternode.config and it works fine for 24 hours. (I see my masternode in masternodes list).
But there're no rewards for 24 hours.
It can take longer than that for it to get started. If the Active time in the masternode list is going up you should be fine.