Networks

If it's internally look at the target of the workstations and make sure that they are correctly set up.

If it's external look at the setup of the router and again the target of the individual workstations. Also depending on what you have running on the server look at Group Policies preventing the connection or something in Active Directory as a possible culprit.

Feel free to post back with more information if you like.

Col

First make sure the server can see it's own site. You should be able to use the http://companyweb address or http://localhost

If neither of these works then you most likely have an IIS issue.

If it DOES work then you want to go to the desktops and make sure that they are pointing to the SBS dor their DNS resolution. Since your SBS server isn't passing DHCP I would bet you're pointing to an outside source or some other stand alone server.

Best of luck.

Try using a static IP. Find out the IP address of your DC and use it as the primary DNS
eg.
Your Local IP subnet is 192.168.5.x
Your DC is 192.168.5.2
Your Router is 192.168.5.1

You have a free IP of 192.168.5.201

Setup your NIC as IP 192.168.5.1
SM 255.255.255.0
GW 192.168.5.1
DNS1 192.168.5.2
DNS2 192.168.5.1

Again just using the 192.168.5.x as an example. You should be able to connect to your company web.
You should also use the DC as the DHCP server. In the server settings set your Primary DNS and secondary DNS as instructed above.