Download dotnetframwork 3.5 or above. Dont forget to run as admin if you have vista or win 7. turn of your firewall and other anti-virs. and if you pc/laptop isn't directly connected to you modem then fluctuating signals would occur causing d/c to occur. So just connect your pc to your modem directly, rather then wireleslly. hope these work for you.
Press thanks if i helped