Base Filtering Engine (and Firewall) fails after upgrade to Server 2008 from 2003
Posted on 2010-09-14
After an upgrade of Server 2003 to server 2008 R2, the server can not accept connections, (but can connect outbound to other servers and the internet) because the Firewall is blocking inbound connections.
I've traced this down to the Base Filtering Engine failing due to "access denied".
There is a thread here in EE ID:26191452 about permissions to start the BFE service being inadequate after an upgrade from 2003 to 2008. Quite complex, but I've made the registry changes that were recommended.
BFE and Windows Firewall still won't start.
Any super experts who know how to debug this?