Just few days ago my FFXIV ping went from 150-160 to 410-420...ive had no issues with with the game until now. No other service is affected, netflix, youtube, steam and general download speed seems to be fine.
Im playing from Australia/Melbourne...also would like to add that sometimes the game doesn't even let me log on...i just get stuck on a blank character selection screen before getting an error and logging me out
Update:i talked to my ISP and they told me that its most likely a routing issue on SE end and they have no control over it
