from your network connection to DragonFly is not being routed correctly.
The traceroutes from before show that one of the network hops isn't
passing along data correctly. There's not much you can do directly.
The reason that add-on work is because it's taking your attempt to connect
and routing it through another location to make it anonymous, and whatever
path it takes from there is one that isn't affected by the same problem as
your normal traffic.
The backscatter thing has nothing to do with it; it's a (inaccurate in this
case) spam registry.