BRI cutting

Hi, I need help with my BRI’s it seems to disconnect by itself and it doesn’t start up when I restart the system I need to restart asterisk and dahdi for the card to recieve incoming calls. I’m using freepbx distro -3.211.63-6-x86_64 Please help> BTW I am using Digium’s b410p 4 port bri card and also when I make changes to the extensions or ring groups I have to restart dahdi asterisk to work :O???