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Burstable packet loss. May be caused by a neighbor preparing his breakfast

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if there is a NAT device on the way from your Client to your Server – a sudden IP change can occur with absolutely no notification to Client whatsoever.

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All the routers, switches (actually – pretty much each and every device which forms Internet infrastructure) – are allowed to drop each and every packet.

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TCP, when it observes a dropped packet, interprets it as an indication of congestion – and slows down.

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NEVER EVER use IPv4 for long-term bans

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If using MAC addresses to identify devices, you SHOULD gather stats on repeating MAC addresses within your DB

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Encoded data size is especially important for Client-Server communications, and less important (within reason) for Server-to-Server ones and for locally-stored format.

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On the other hand, due to being optimized for CPU operation, Flatbuffers are NOT optimized space-wise; even compared to not-so-optimal-space-wise Google Protocol Buffers, Flatbuffers can lose additional 1.5x in size