A dedicated server doesn't help when the first person to load a zone plays on a potato. The server only manages the world and the world saves. Enemies are handled by the first person who loads a zone and if that person has a bad internet connection or a slow PC you will get lag regardless.

the game is, in fact, online and co-op. This is why it has the tags. Since servers and connections are managed by the players, connectivity issues are not on the game devs or their product. Its like complaining to microsoft that you can't share files with your family because your router is set up wrong: that makes it window's fault, right? They said you could do it... and you can't!!! ???

Get a better server, client computer and/or internet connection. We play with 5 people online at the same time with no problems.

Yep, dedicated server--group of 5 here, yes there's occasional lag but mostly it's alright and we have a good time.

Sounds like you need a dedicated server old chap.

Ran on one with 6 of us for several months admittedly it was rare to have more than 4 on at time but only issue any of us had was the perennial world save mega lag paralysis.

Not disputing your poor experience just sayin' its not all like that. But yeah we ALL agree the game engine needs an optimising pass in the worst way, however the "Moooor COntnet Naaaooow!" Brigade will likely shelve that leading to the endless cycle of more but less playable content ad repetius ad nausioum

Does your server satisfy minimum requirements? Are you running the client on it, too? That would increase the requirements. Have you made sure that the game is hosted from dedicated?

Is it Online ? Is it Cooperative ? How would a tag increase life of the game maybe?