Question : How to connect to the Internet when the DHCP server is shutdown

I finally set up my Win 2003 server (Active Directory) and have all the workstation joined to the Domain. Now below are the steps  took in achieving that.
1. I disabled the DHCP on my Linksys router and used the one on Windows 2003 server
2. Allocated static IP (192.168.1.5) to Domain server and same as  DNS (192.168.1.5);
3. Used Linksys router address (192.168.1.1) as the gateway address on the server;
4. Set DHCP Scope on the Domain server to 192.168.1.1 to 192.168.1.225 and reserve IP range 192.168.1.1 to 192.168.1.100
5. With these configuration and having properly setup the AD, DNS and Forwarder on the server, I was able to connect all the workstations running (both Windows XP Pro. and Vista Business Edition) to the server seamlessly; and I was able to have access to the resources on the domain server and at the same time able to access the Internet from the workstation. Of course the server too was able to connect to the Internet. However, the unexpected happened when I shutdown the server to see if I would still be able to get to the Internet on the workstations, but I could not despite the fact that I setup the alternate configuration on the workstation using IP from the reserved range (on the Server DHCP) and using the same subnet mask as well as the router's IP (192.168.1.1) as the gateway. In the preferred DNS server and the alternate DNS server I used my ISP's DNS address; and I left the preferred WINS server and alternate WINS server blank. When I check the path to the internet on Vista, it shows that the system is connected through to the Internet, I was able to also ping my ISP,s DNS addresses but unfortunately, I was unable to unable to browse the web. Can someone please tell me what I am supposed to do that I have not done? Thanks in advance.

Answer : How to connect to the Internet when the DHCP server is shutdown

Add your ISP's DNS server to the DNS settings under DHCP scope options and this will add a secondary DNS server to all clients who pick up an IP address.

Then when the server goes down, the clients will have two DNS servers to ask, the server will not respond, so they will then ask the ISP for DNS resolution and will be able to get onto the internet.