Deleting Computer to Computer Network

[slowplumtaylor]

I accidentally set up a computer to computer network and I cannot figure out how to make it go away. I also tried to password protect it, to at least lock it down, but the password is removed from the network as soon as someone logs on (and doesn't require a password to do so). Something is fishy, to say to least. I was told to go into my preferences (through Library) but I don't know what to make of the omnioutliner files. How do I get rid of this network?

[Satcomer]

If you right click on it it doesn't eject then try to reset your Pram.