Minecraft server drop my connection via IPv4
I opened a Minecraft server on vps,
but the connection between client and server is unstable.
I can't connect to server and show the error "Connection reset by peer".
I tested servers in different regions,
only Singapore has network problem.(Connect reset by peer)
Server in New York works perfectly,
but the network is too slow.(Ping up to 250ms)
I can connect to Minecraft server via IPv6 in Singapore,
But the connection via IPv4 is always showed the error.
Anyone can help me?