all though i am new i have done some reading and have had this exact experience.
what pc and how old is it?
i have an older laptop running vista, i tried to hook my dm10 up to that AND NO WAY WAS IT HAPPENING.
the laptop is so far outa date and the drivers suck that the dm10 wouldnt evenfinish downloading the drivers..
so i bought new laptop with win10 and 4g of ram
and holy crap!!! BOOM
instantly worked..
me being newb..dont know how much this post will help but i had the same thing going on
my laptop was just not up to the task.
might i suggest as suggested above, adjust all setting on laptop, remove all power saving modes, close and disable any and all programs that run upon startup or in back ground.
and most important update any and all drivers if possible..
my problem was simple..my crap was to crappy needed to upgrade.
have you checked to see if your running conflicting programs? ie two fighing for control of the system?
sometimes computers are stupid and its something totally simple messing with you.