NetworkServer.spawn NOT WORKING!

My problem is that when I try to spawn the player, it is only able to do so on the client which 'hosted' the game. The error I receive from attempting to spawn the player is, "NetworkServer is not active. Cannot spawn objects without an active server." I'm not sure what is causing this, however, I am also aware that when connected as a 'client' NetworkServer.active equals false.

 public GameObject RedNetworkObject;
 public GameObject BlueNetworkObject;

 // Use this for initialization
 void Start () {
     if (NetworkServer.active) {
         Debug.Log ("Server Is Online");
     } else {
         Debug.Log ("Server Isn't Online");
     }
 }
 
 // Update is called once per frame
 void Update () {
 }
 [Command]
 void CmdSpawnRed()
 {
     GameObject ChooseClassObject;
     ChooseClassObject = (GameObject)Instantiate (RedNetworkObject, GameObject.Find ("RedSpawnPoint").transform.position, Quaternion.identity);
     if (isServer)   {
         NetworkServer.Spawn (ChooseClassObject);
     }
     if (isClient)   {
         NetworkServer.SpawnWithClientAuthority (ChooseClassObject, connectionToClient);
     }
 }
 [Command]
 void CmdSpawnBlue ()
 {
     GameObject ChooseClassObject;
     ChooseClassObject = (GameObject)Instantiate (BlueNetworkObject, GameObject.Find ("BlueSpawnPoint").transform.position, Quaternion.identity);
     if (isServer)   {
         NetworkServer.Spawn (ChooseClassObject);
     }
     if (isClient)   {
         NetworkServer.SpawnWithClientAuthority (ChooseClassObject, connectionToClient);
     }
 }