Text Before ~ in Terminal Incorrect

[jashtiani]

I opened my Terminal today and just noticed that the text before my username "Justin" is "justinsnetwork" which I don't know how it got there. The name of my computer is Justin's iMac, so shouldn't that be before the ~ in Terminal? How do I change this and make Terminal go back to the way it was when I originally got my computer?

Please see attachment to see a screenshot.

 

[b0fh666]

dhcp does that... disconnect from the network then reopen the terminal, see if it goes back to normal.