Mudfish connects, but game doesn't go through connection

So the game used to go through the mudfish connection, but recently I noticed my latency stays high regardless of mudfish. so I disconnected mudfish midgame and absolutely no difference. changed to different server even to ones with 3k latency to check and yup no difference in game latency.

So how to make my application(World of Warcraft) go through the mudfish connection?

Could you please test it again if you’re using WoW - Europe (France - Warmane)? IIRC recently I’d updated the game item.