Thread:Project:Support desk/Acces MediaWiki on a Home Network (Win7)/reply (7)

Make sure that your Windows server's private subnet is the same private subnet as the rest of your network. Checking your bindings, as mentioned above, would be a good idea.

Also check whether your firewall exemptions cover the necessary scope - remember that in Windows 7 and Server 2008 R2, Windows Firewall deals with at least two types of network profiles, public and home (or domain if you use Active Directory).