I turned off PNP on my router, so devices (like the M1) can NOT create their own port forwarding on-the-fly.
But somehow, my slingplayer app is able to connect into my M1 over the internet and work. The only thought I have is that the M1 *continuously* keeps "pinging" slingbox's servers waiting for a "Thanks for waiting, I now have a connection request for you".
But, I dont use my slingbox a lot, so thats a lot of "outgoing" pinging that the M1 has to do 24/7 waiting for an incoming connection request.
Does any techie's out there know if this on-the-fly incoming connection is being done another way?