We know that IPv6 is on its way to becoming the preferred protocol language of the near future but not just yet. By default, it is enabled on Windows server 2008 and at times it is just not needed and/or can wreak havoc with other applications. If you are experiencing technical troubles related to this, below is a small, simple step procedure on how to disable IPv6 on server 2008.
1- Login to the registry.
2- Go to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpip6Parameters
3- Create Dword value DisabledComponents
4- Add the value of 0xFFFFFFFF
5- Reboot the server.
Once the server is up and running, it will have completely disabled IPv6 on the server.
Included below are two YouTube videos that we believe will serve as visual guides when you want to disable IP6 on Windows Server 2008 as well as configure DHCP setting on Server 2008.