I also play in the EU servers and I was playing fine up until a couple days ago when i've been suddenly getting constant 90002 error messages, even at 3am, and I can barely play anymore. I've noticed I can stay in the overworld longer (30 minutes if i'm lucky) but the moment i try to do pvp/dungeons etc I get disconnected within 2-5 minutes. I can't even run trust dungeons and that's just me and some npc's.

I've seen a lot of players on the EU servers with this issue, specifically those on the Light data centre, which is also the one i play in. A lot of people seem to think they messed something up after the maintenance back in July. It might just be that all the servers are overwhelmed but we can only speculate.

I honestly think we'll just have to be patient while they work on expanding all the servers but it sure doesn't make it any less annoying for us.