diff --git a/config.properties b/config.properties
index fcf2420..decc49f 100644
--- a/config.properties
+++ b/config.properties
@@ -6,8 +6,9 @@ mysql_password=Michal2407
 mysql_database=jnet
 server_port=1225
 debug=true
-ping_attempt=2
-ping_timeout=2000
+ping_attempt=4
+ping_timeout=2
+ping_repeat=3
 instability_attempt=2
-instability_limit=1000
+instability_limit=1
 
diff --git a/src/jnet/server/probe/NettyPing.java b/src/jnet/server/probe/NettyPing.java
index a20c54f..5b5cab1 100644
--- a/src/jnet/server/probe/NettyPing.java
+++ b/src/jnet/server/probe/NettyPing.java
@@ -11,39 +11,36 @@ import jnet.lib.Status;
 import jnet.lib.object.MapObject;
 import jnet.server.Server;
 
-
 public class NettyPing extends Thread {
-    
+
     private static final HashedWheelTimer TIMER = new HashedWheelTimer(); // Netty časovač
 
     public NettyPing() {
     }
-    
-    
 
     @Override
-    public void start() {
+    public void run() {
         LogFile.printInfo("Ping probe start");
         for (MapObject mapObject : Server.mapObject) {
             schedulePing(mapObject);
         }
     }
-    
+
     private static void schedulePing(MapObject object) {
         TIMER.newTimeout(new TimerTask() {
             @Override
             public void run(Timeout timeout) {
                 pingHost(object);
-                timeout.timer().newTimeout(this, 3, TimeUnit.SECONDS); // Opakuje každých 5 sekund
+                timeout.timer().newTimeout(this, Server.config.getInt("ping_repeat"), TimeUnit.SECONDS); // Opakuje každých x sekund
             }
         }, 0, TimeUnit.SECONDS);
     }
-    
+
     private static void pingHost(MapObject object) {
         try {
             String command = System.getProperty("os.name").startsWith("Windows")
-                    ? "ping -n 1 " + object.getIp()
-                    : "ping -c 1 " + object.getIp();
+                    ? "ping -n 1 -w " + String.valueOf((Server.config.getInt("ping_timeout")*1000)) + " " + object.getIp() // Timeout 2000 ms (Windows)
+                    : "ping -c 1 -W " + String.valueOf(Server.config.getInt("ping_timeout")) + " " + object.getIp();    // Timeout 2 sec (Linux)
 
             Process process = Runtime.getRuntime().exec(command);
             BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
@@ -60,16 +57,18 @@ public class NettyPing extends Thread {
             }
 
             //System.out.println("Ping na " + object.getIp() + (success ? " uspesny! RTT: " + timeMs + " ms" : " selhal!"));
-            if (object.getStatus() != Status.OK) {
-                PingResult.stateOnline(object);
+            if (success) {
+                if (object.getStatus() != Status.OK) {
+                    PingResult.stateOnline(object);
+                }
+            } else {
+                PingResult.stateOffline(object);
             }
-            
-            
+
             process.waitFor();
         } catch (Exception e) {
-            System.err.println("Chyba pri pingu na " + object.getIp());
             PingResult.stateOffline(object);
-            //e.printStackTrace();
+            LogFile.printErr("Chyba pri pingu na " + object.getIp() + " " + e.getMessage());
         }
     }
 
@@ -82,6 +81,5 @@ public class NettyPing extends Thread {
         }
         return -1;
     }
-    
 
 }
diff --git a/src/jnet/server/probe/PingResult.java b/src/jnet/server/probe/PingResult.java
index df2d8d3..2bc16e9 100644
--- a/src/jnet/server/probe/PingResult.java
+++ b/src/jnet/server/probe/PingResult.java
@@ -10,14 +10,26 @@ import jnet.server.ServerMessageParser;
 
 public class PingResult {
 
-    private static final int POKUS = 2;
-
+    private static final int POKUS = Server.config.getInt("ping_attempt");
 
     public static void stateOnline(MapObject obj) {
         // oveří jestli neni zarizeni vypnuto
-        if (obj.isActive()) {
+        if (obj.isActive() && obj.getStatus() != Status.OK) {
             // vynuluje ping pokusy 
             obj.setPingAttemp(0);
+            // pokud byl předchozí stav offline ukončí event
+            if (obj.getStatus() == Status.OFFLINE) {
+                // aktualizace eventu
+                Event event = Database.endEvent(obj.getId(), Event.TYPE_PING);
+                for (int i = 0; i < Server.events.size(); i++) {
+                    if (Server.events.get(i).getId() == event.getId()) {
+                        Server.events.set(i, event);
+                    }
+                }
+                // odeslani aktualizovaného eventu
+                ServerMessageParser.sendAll(Message.EVENT_UPDATE, event);
+            }
+
             // nastavi status objektu
             obj.setStatus(Status.OK);
             // odesle informaci o novem stavu klientum
@@ -28,7 +40,8 @@ public class PingResult {
     public static void stateOffline(MapObject obj) {
         // oveří jestli neni zarizeni vypnuto
         if (obj.isActive()) {
-            if (obj.getPingAttemp() >= POKUS) {
+            if (obj.getPingAttemp() >= POKUS && obj.getStatus() != Status.OFFLINE) {
+                System.err.println("objekt: " + obj.getName() + " pokus: " + obj.getPingAttemp());
                 // nastavi status objektu
                 obj.setStatus(Status.OFFLINE);
                 // odesle informaci o novem stavu klientum