Severe attack delay

[Frog_morton]

Ok when I log in if I do not move from that spot, I can attack a mob with either melee or casting spells, and everything works fine. Mop agros, we fight, I kill it.
If I stay in that spot and do not move I can fight mobs all day long. the problem is any time I move to a different spot I have a long delay if I attack something, Im talking 30 secs plus sometimes. If I agro a mob and hit attack I just stand there while mob hits me, if I cast it starts to cast but wont complete the cast til after the delay. Same for merchants and trainers, if I have to move to get to them then there is a delay before they will recognize me. Once I have been in a new spot for a certain amount of time I can fight like normal again and interact with merchants and such that I can reach. I usually get to the spot I want to hunt, con the mobs and wait for the their con to show up in chat, then I know I can attack. And everything is fine as long as I don't have to move.
Been doing it for a couple months. its not lag as I know it, I mean while im waiting for the delay to end my mana goes up as dose health, I can check inventory, move things around on my toon, communicate with people, just doesn't seem like normal lag. When I started playing again in august it was fine. Any helps appreciated.