Bedrock Realms are being taken offline by users who join on throwaway accounts and flood the server with far more packets (sounds, particles, etc.) than normal gameplay could ever produce. The whole Realm crashes and every player is disconnected. This happens repeatedly and Realm owners have no defense.
My suggestion: build per-connection packet rate limiting into Realms. Legitimate play has a natural ceiling on how many packets a client sends per second. If one connection wildly exceeds that ceiling, the Realm should throttle or disconnect THAT connection , the Realm itself should never be the thing that goes down.
Community-run servers have had this kind of protection for years. Realms is a paid product marketed as safe multiplayer for friends and families, but right now a single hostile account can crash one at will. The worst case under abnormal traffic should be one bad connection getting dropped, never a full-server crash.
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