I'm in this game since around patch 2.3 4637 hours and i never had problems. But after patch 4.4 I have constant lags. They stop only at night and early morning.

Server: Zodiark
Platfor: PC
Type of connection: wired
Other programs running while the game is playing (if any): sometimes google chrome (tried without it same result)
Frequency: day-evening
Everything you have tried to resolve the issue: rebooting router/game/computer, made exceptions in the antivirus

I don't have any problems with connection in other games. Only here and only after patch 4.4