after i did some changes in power options ( Never: for Put the compter to sleep )
and for testing ( in Advanced settings\Hard disk\Turn off hard disk after )
i set the time for 6000 minutes.
so for 2 days now it is ok and no stuck or disconneted.
so i believe as Purple intended for surveillance , it should not put in a desktop computer ,
unless we put it in a server computer that running 24 hours.
after doing some experiments i will shift it to a server computer .
thanks
