Network established but disconnected

Question

Hi, my Fortec Lifetime II is not connecting to the internet. I have a dedicated ADSLline for this so my net connection is on 24X7.I get "Network established but disconnected" message. I have used the same IP for my p.c (as the one used by my receiver) and it works fine. Due to error in connection I only get FTA and the rest of channles are scrambled.Can anyone help me with this.Thanks