I have missed all of the fun.

My GS-502 hasn't missed a beat, have not had any registration issues that I'm aware of.

I have one of the first GS-502's still using the original firmware it shipped with. My 502 is behind a router, static IP setup for it with port forwarding. Everything has been working beautifully with one exception. It didn't update to a newer firmware which might be a good thing.