I was working on a client machine that was having trouble acessing network drives. I did an ipconfig and found 200+ network adapters. After some research, it seemed there was an issue with having multiple 6to4 network adapters and they were screwing up the machine's networking.
I followed this blog post for the automation of the removal using devcon:
The automated method took probably 3 seconds to remove each 6to4 adapter, so it wasn't fast, but it was easy.