Basically when I go to use an Off GCD skills IR/BotD for example, when I go to use one of them they will go back on cooldown for a few seconds then I have to wait for it to pop back up before I can use it. Does anyone know a fix to this?

I am from Australia using WTFast and I've tried Pingzapper with the same results. I am on NBN with lan cord. So no wireless delays there.