I have been on two different servers, both Sarlona (my regular sever), and Thelanis. On Thelanis I threw together a cleric and tossed off a couple cure light spells. I could count to three before the spell hit.
The same thing with my ranger, my sorcerer, and my cleric on the Sarlona server. Not all cure spells, but just as much waiting time between firing off the spell, and it actually hitting.
To my knowledge, there has been no settings changed, and it was perfectly fine yesterday.
I checked the packet loss, and there's almost none whatsoever. (Between 1% and 0.01%)
Is anyone else having a similar problem, and if not, does anyone have any suggestions on how to fix whatever it might be?