Very unstable internet in office.

The internet in office is very unstable. Sometimes, it is very slow, with only tens of bits per second. And the speed can reach as high as several hundred bytes per second; but don't last for long time. The most weird thing is even the file wasn't downloaded completely, FlashFXP stop downloading and think it has been finished, and also removed it from the queue. That's the worst thing for a correct downloading.