Never had any issues with lag before this. Open world is fine, dungeons are a different story. Trying to heal Halitali last night with my scholar was interesting to say the least. Seems many of my heals either never connected or were very delayed. Had problems with adlo primarily using the cool down but not hitting and lustrate was hit or miss. Others had combo problems and people were teleporting all over the place.
Same group, different healer (Whm) had similar problems in Brayflox earlier.