Why are you moaning about 4Mb/s?
50Mb/s @ 750 meters is great.
Yes it is, but I don't wish to use BT kit, as 2750n has four gigabit ports.
Even the upload is terrible, BT quoted up to 20Mb, & I know I won't get any where near that, but when using Sky Go, it still keeps buffering which is darn annoying.
And as to ping I can only dream of getting 5ms, usually around 25-30ms.