Windows server 2008

[Deo]

Hello,I have configured my server PowwerEdge T110 II with windows server 2008 as DC and NAT it has 2 NICs and 3 ports bcs I have a dual port NIC. My network is as follow: ISP->Cisco Router -> windows server 2008 -> PCs. My problem is none of the PCs is able to access the Internet:Router IP: 192.168.1.1/255.255.255.0/ISP IP/ DNS cisco given.Windows server 2008: Public NIC: 192.168.1.115/255.255.255.0/192.168.1.1/ ISP DNS + Cisco DNS Private NIC1: 192.168.1.135/255.255.255.0 Private NIC2: 192.168.1.136/255.255.255.0

Windows 7 Pro PC: IP: 192.168.1.113/255.255.255.0/192.168.1.135/ISP DNSs

When I try to go online All I am getting is DNS not respondingAny help with this issue/Thx,

Vey