Couple hours ago my MS was around 30 on blackrock/lordaeron.

Then i got DC and ever since that moment my ms is 1000-5000.

My internet is fine 10ms, 80mbps, i can watch 5 streams, 5 youtube videos at once and it loads instantly.

But when I play WoW on blackrock/lordaeron/other servers my MS is insane.

My friends have normal ms.

How to fix this?