Download stuck continue and then stuck again

i cant download the system at once. i mean i download it and then it stops... then its starting again and then stops again same and the same...can u fix it plz?i tryed to download it from 2 different pcs lol so i think its not my problem! ;p

[GR] ennoo oti to kateuazo kai sta 0,5mb stamataei meta apo 20 sec arxizi ksana mexri ta 0.9 meta ksanarxizei ktlp ktlp alla dixni oti kateuazo 200 mbps alla dn kateuazo kati lol meni sto 0,5mb kai meta apo 20 sec arxizi!
an mporeite na to ftiaksete tha itan kalitera gia olous mas pisteuo! thx pantos