I agree with jmwking - hiding the wifi name is one of those things that looks like an additional layer of security, but really isn't. All it does is inconvenience you, without providing any protection against someone trying to hack their way into your network. Someone with enough resources to get past your WPA2 password would already be using tools which show all networks including hidden ones.

It's similar to MAC address filtering, something that's easily spoofed by anyone who wants to break in, but is a massive hassle for you to maintain. A better analogy might be the "show hidden files" tickybox in Windows Explorer: If someone were browsing for a secret file, that's the first thing they'd hit.

Besides, it robs you of the chance to make a funny wifi name.

Though I would be surprised if your weird wifi issue is induced by hiding the network name. The situation you're describing is supposed to work even if the name is hidden. As you said, you have other systems which work fine that way, so it's something about that particular system. It's worth a try though.