Ethernet light blinking

ok this sounds easy
heres your problem you
DsL is a glorified phone connection its not smooth and is always in a state of flaux along with your neighbors there neighbors so on and so forth
technecoly i would run cable connection that does not flaux with neighbors always have a strong signal and wont interfere with your videos
DsL is slow as 58 bit data fax modem i found it a waist of money and time waiting for system to play catch up
now if you want to play videos with out interupt turn off cable dsl modem this will bring function back to normal in video mode
your comps fine its just your service provider