My guess is that those are both base stations/hotspots somewhere. Don't know why you'd be getting an error on the one, but the other one is password protected, so leave it alone. Anyway, I doubt that they are networks generated by an individual computer, so you aren't really gonna be piggybacking, but if you could figure out how to get onto that NETGEAR network you might be able to get net access.
I also find it kinda funny since I have a network named NETGEAR that's being generated by our next door neighbors. Maybe it's the default name for a base station by some brand?