This is Internet Provider problem. Solution depends upon why this is happening. 1. Internet Provider is affected by global accident that has something to do with cutting connection to your local region. - Countries that has access to global servers via sub-terrain or under sea cables are often affe...

I have a solid PC that can run Modern warfare 2 and I have University levels of internet.
If I input the order to build a unit in the base, it happens instantly, but when I order a unit to move or attack it lags 1.7 seconds every time. With no exception in any game.
I am from Australia