"I recently ran into a situation where I was having some issues with
the Windows Firewall on my Windows Home Server, so I did what I though would help me solve my issues. If you open the options for the Windows Firewall on your Windows Home Server, there is an advanced tab with an option to "Restore Defaults." I figured this would restore the Firewall to the state it ships with Windows Home Server. Unfortunately, this isn't the case; it restores the Firewall to a BLANK state, losing all the necessary exceptions for WHS to function properly.

I also thought I could simply just recreate the necessary exceptions bringing WHS back to a restored firewall state. Unfortunately, this isn't the case either. I scoured the internet looking for the information on what exceptions to make and never really found a complete list. I searched everywhere: the technet site, Homeserver official forums, mswhs, wegotserved. everywhere."