Cannot connect to local server

[TamirIsHere]

I'm trying to connect to a local server (running the server on my own PC), and receiving this error:

{ [Error: connect ECONNREFUSED 10.0.0.4:27015]
  code: 'ECONNREFUSED',
  errno: 'ECONNREFUSED',
  syscall: 'connect',
  address: '10.0.0.4',
  port: 27015 }