Fixed RPCClient.Ping Error

InABox.Client.RPC/RPCClient.cs

@@ -222,6 +222,8 @@ namespace InABox.Rpc
         {
             try
             {
+                if (!_transport.IsConnected())
+                    _transport.Connect();
                 _transport.Send<RpcPingCommand, RpcPingParameters, RpcPingResult>(new RpcPingParameters());
                 return true;
             }