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		cma on Dec 29, 2016 \| parent \| context \| favorite \| on: UDP vs TCP Not doubting, I see some other sources say the same thing, but why do you need to open UDP ports for WOW? https://us.battle.net/support/en/article/firewall-proxy-rout... Is it something that changed over time and that page is out of date? Is it just doing TCP over UDP for some esoteric cases?

Negitivefrags on Dec 29, 2016 [–]

I don't know why it lists all three ports under both UDP and TCP for WoW. WoW uses 3724 over UDP for it's voice chat, but the other ports are only used with TCP.

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