I have found a fix for most users that are experiencing issues with the miners just stopping!

 if you use the conf file and you add more than 1 pool the miners will all stop when network difficulty information is gathered from the other pools.

 Fix: set 1 pool in your conf and remove the pool from the cmd/bat file, if you leave the same pool in the cmd/bat file it still treats it like having 2 pools.

my bat file:

bfgminer.exe --scrypt -S MLD:all
pause
exit


hope that helps!