[Well. That's reassuring?]

If we cannot contact the network, how are we supposed to be found?

[HAL doesn't sound anxious, because he's not. He's more concerned with what that means for the other people in the corridors than what it means for him. He's certain he can take care of himself.]

The corridors don't seem to move for no reason. It's logical to assume that these hallways are leading us somewhere.