Invalid Players randomly cant ping/connect to proxy

Hey all,
Have just purchased a machine from Secured Servers and set up lilypad on it, linking together 16 servers (15 minigames & hub) to the allinone. Everything works fine, however randomly players will not be able to ping the server, nor connect to it. After a few minutes, it seems that few people can now ping it, but not all of the players. As more time progresses, eventually all players will be able to connect again, but the process then repeats. i attempted to change connection throttle to 1, however still no luck.

allinone.conf

Code (text):

{
  "proxy": {
    "bind": {
      "address": "0.0.0.0",
      "port": 25565
    },
    "outbound": {
      "address": "0.0.0.0"
    },
    "servers": [
      {
        "domain": "*",
        "server": "hubbyserver"
      }
    ],
    "motd": "\u0026c\u0026l\u0026m-\u00266\u0026l\u0026m-\u0026e\u0026l\u0026m-\u0026b\u0026l\u0026m-\u003c\u0026r \u00263\u0026lMC-CENTRAL\u0026r \u0026b\u0026l\u0026m\u003e-\u0026e\u0026l\u0026m-\u00266\u0026l\u0026m-\u0026c\u0026l\u0026m-",
    "playerMaximum": 5000,
    "authenticate": true,
    "throttle": 1,
    "tabEnabled": true,
    "localeFull": "You seem to be already logged in",
    "localeOffline": "The requested server is currently offline. Try again later!",
    "localeLoggedIn": "You have logged in from another location",
    "localeLostConn": "Lost connection... Please try to reconnect",
    "localeShutdown": "The server is being restarted. Please try to reconnect"
  },
  "queryTcp": {
    "bind": {
      "address": "0.0.0.0",
      "port": 5555
    }
  },
  "queryUdp": {
    "bind": {
      "address": "0.0.0.0",
      "port": 25565
    }
  },
  "connect": {
    "bind": {
      "address": "0.0.0.0",
      "port": 5091
    },
    "logins": [REMOVED LOGINS FOR PRIVACY]
  }
}

USING bukkit-connect #36
USING allinone.jar #80

server is hosted in Phoenix, and the people trying to connect seem to be all of our playerbase, so me for example in Australia (~450ms ping)

try changing the address to the external ip address of the machine the lilypad is hosted on.

Still you are getting ping test problem? If so, i would suggest you to uninstall your ping server and follow the instructions to re-install ping :

1. Download a version (Latest version is recommended)
2. Install PingTest.jar to your plugins folder
3. Run server

After completing this task, you can test your ping by using the following command :

/testping - Tests your ping/connection!

If your ping connection is succeeded, you can test it randomly without any interruption . If the same problem persists,
then fault occurs game server. Follow the process to fix it :
Reset the Modem ....
Un plug the connections,then plugin.
You can check the ping using the methods below before playing the game and while playing the game...sure you can find is the problem in connection or in the website.You can check the Ping of the Internet Connection easily...To check Local LAN Connection Ping by using the Following method
GO to start->run->cmd->Ping ip-address
or you need to check Ping for website from your computer means you can reach here Whoisxy.com and do the Ping test for yahoo,Google etc...