Ping gets bad "ICMP packet response" and returns -

Hi all,

i am trying to ping the server as client with this code:

Code (csharp):

1. if(Network.isServer)
2.         {
3.             ping = 0;
4.         }
5.         else
6.         {      
7.             if(pingToServer.isDone)
8.             {
9.                 ping = pingToServer.time;
10.                 // on client, connection 0 == server
11.                 pingToServer = new Ping(Network.connections[0].ipAddress);
12.                 //Debug.Log(Network.connections[0].ipAddress + "Ping attempt");
13.             }
14.         }

I do this every couple of seconds and once in start().
But all i get is a ping of "-1" and this message in my
mac "konsole":

I checked the ip of "Network.connections[0].ipAddress" (the server) and its right, so is anyone able to figure out whats wrong?

Thx so far

Ethan

 

Another info:

it seems to work on LAN but not over the internet.
Perhaps a problem with the router/NAT ?