Backgroud Apps Automatticaly Shut down After Lolipop Update

its on wifi ...and other downloads working finee its not problem of network or data

OK. So you are using Wi-Fi and all other apps download OK from the Play Store and it is just the Brothers in Arms 3 game that will not download. Am I correct?

Have you got more than enough space on your phone's internal memory to download a game of this size, (754MB), which with the installation will require around 1.5 -2GB free space.
 
but i was had 3gb free of space its ram problem it always free 450 MB near but apps are not running much in background....my u torrent is also shut down automatically when i use facebook or whatsapp app
 
OK. So you are using Wi-Fi and all other apps download OK from the Play Store and it is just the Brothers in Arms 3 game that will not download. Am I correct?

Am I correct?

but i was had 3gb free of space its ram problem it always free 450 MB near but apps are not running much in background....my u torrent is also shut down automatically when i use facebook or whatsapp app

With Android... unused RAM is wasted RAM, unlike a PC. Are you using any sort of Task Killer?