The Small Business Server Internet Connection Wizard is designed to simplify the networking, firewall, and e-mail configuration tasks necessary to properly connect Small Business Server computer to the Internet.
Due to the complex nature of networking, and the number of services that are running on the Small Business Server computer, it is highly recommended that administrators use the Small Business Server Internet Connection Wizard rather than configure these services manually. The wizard is designed to support all of the network topologies provided by Small Business Server.

Additionally, should the networking configuration of Small Business Server become corrupted or changed in any way, you can reset the configuration simply by running the Small Business Server Internet Connection Wizard again.

When troubleshooting networking problems, using the wizard is an excellent way to check that the networking configuration of the server is returned to a baseline state. When running the Small Business Server Internet Connection Wizard, make sure that you have completed the following:

• All of the network adapters on the server are enabled, connected to an active network device (such as a router or hub), and are assigned a valid IP address.
• The network adapter used for your local network has a static IP address (default of 192.168.16.2).

• Networking Configuration
• E-mail Configuration
• Firewall Configuration

For details of running the wizard, click here.

While the Small Business Server Internet Connection Wizard will ensure that the server is configured correctly for core networking services, there are additional configuration steps an administrator should perform after running the wizard. Microsoft recommends that in addition to running the Small Business Server Internet Connection Wizard, the following configuration steps should be performed in order to resolve the vast majority of networking problems seen in the Small Business Server environment.
To perform additional configuration steps

1. Point the DNS server records for the external network adapter to the local IP address of the Small Business Server (the default is 192.168.16.2). This will optimise name resolution from the Small Business Server computer by pointing all DNS name resolution requests to the local server for local names, and then forwarding Internet name requests to the ISP DNS servers.
   To verify the external network adapter DNS settings
   1. Click Start, point to Settings, and then click Network and Dial-Up Connections.
   2. Right-click the local area connection for your external network adapter (assuming two network adapters are configured on the Small Business Server computer), and then click Properties.
   3. Select Internet Protocol (TCP/IP) and then click Properties.
   4. In the Networking Components dialog box, verify that the IP address for the internal network adapter is listed in the Preferred DNS server field.
2. Ensure that the local network adapter is placed first in the binding order for the server. WINS will always bind to the first network adapter in the binding order. Since WINS is designed for local network name resolution only, it should be bound to the local network adapter.
   To verify the binding order for the internal network adapter
   1. Click Start, point to Settings, and then click Network and Dial-Up Connections.
   2. In the Network and Dial Up Connections folder, select Advanced from the menu, and then click Advanced Settings.
   3. On the Adapters and Bindings tab under Connections, ensure the local network adapter is listed first.
3. Set the DHCP scope option for the WINS node type to hybrid node (h-node) instead of broadcast node (b-node). By default, WINS is configured to use b-node, which can cause network congestion and slow service response in the small business environment. By configuring all clients to utilise h-node for WINS, the performance of name resolution can be optimised.
   To set the DHCP Scope Option for the WINS
   1. Open the DHCP management console. (Click Start, and then click Small Business Server Administrator Console. Double-click Computer Management (Local), double-click Services and Applications, and then double-click DHCP.
   2. Double-click your scope, and then select Scope Options.
   3. In the details pane, double-click 046 WINS/NBT Node Type.
   4. Under the Data Entry field in the Scope Options dialog box, change the Byte field from 0x1 (b-node) to 0x8. (h-node). This will configure the client computers who receive DHCP information from the Small Business Server computer to resolve NetBIOS names by using the server first for name resolution.
   If the server does not have the request from the client in its WINS database, the client will then initiate a broadcast on the network to attempt to resolve the NetBIOS name request.
4. Create a DHCP scope option for the DNS domain name to match the internal domain name of the Small Business Server. This will provide client computers with the FQDN of the domain to set the DNS suffix for the client computer.
   To set the DHCP Scope Option for the DNS domain name
   1. Open the DHCP management console. (Click Start, and then click Small Business Server Administrator Console. Double-click Computer Management (Local), double-click Services and Applications, and then double-click DHCP.
   2. Double-click your scope, right-click Scope Options, and then click Configure Options.
   3. On the General tab, select 015 DNS Domain Name.
   4. For the String value field under Data entry, enter the local domain name for your Small Business Server (for example, smallbusiness.local).
   5. Click OK.