no internet connection!
take a look to your pool settings, only type the pool address without protocol in front.
I develop atm an custom firmware for the antminer S7, so that you have more options to set.
beep or not beep
throw some stupid messages out of cgminer
and so on.
It happend to me. All I had to to was reset my router DNS options. For some reason it wasn't updating accordingly. Hope it helps.