Like many others ill just mention that I too (Aus east coast) am having horrible ping. Even last night it would sit at 320 then while in combat it would jump to 500-600.
A big boss was being taken down by AT LEAST! 50 people and my ping went to 3200. The I couldn't dismount or cast any spells. Then the game crashed. Also getting the connection error constantly.
Hope the fix it soon!