SBS2011 Standard Server has no internet but clients have connections to internet.

SBS2011 Standard Server has no internet  but clients have connections to internet.

Configuration  : Router ;- Cisco wrvs4400n (DHCP is off)

                               Switch : Cisco SF200-24

Server Dell R410

OS :SBS2011 Standard DNS and DHCP running on the same server

Can ping between each equipment  with no issues.