diff --git a/src/net/azib/ipscan/core/net/ICMPPinger.java b/src/net/azib/ipscan/core/net/ICMPPinger.java
index 7561129c..1fd21196 100644
--- a/src/net/azib/ipscan/core/net/ICMPPinger.java
+++ b/src/net/azib/ipscan/core/net/ICMPPinger.java
@@ -84,9 +84,8 @@ public class ICMPPinger implements Pinger {
 				long start = OctetConverter.octetsToLong(data, dataOffset);
 				long time = end - start;
 				
-				result.totalTime += time;
-				result.replyCount++;
-				result.ttl = packet.getTTL() & 0xFF;
+				result.addReply(time);
+				result.setTTL(packet.getTTL() & 0xFF);
 			}
 		}
 		catch (InterruptedIOException e) {
diff --git a/src/net/azib/ipscan/core/net/ICMPSharedPinger.java b/src/net/azib/ipscan/core/net/ICMPSharedPinger.java
index 783b43a2..1cd3ac58 100755
--- a/src/net/azib/ipscan/core/net/ICMPSharedPinger.java
+++ b/src/net/azib/ipscan/core/net/ICMPSharedPinger.java
@@ -116,7 +116,7 @@ public class ICMPSharedPinger implements Pinger {
 			}
 				
 			int totalTimeout = timeout * count;
-			while (totalTimeout > 0 && result.replyCount < count) {
+			while (totalTimeout > 0 && result.getReplyCount() < count) {
 				if (LOG.isLoggable(Level.FINEST)) {
 					LOG.finest("Waiting for response " + address + ": " + totalTimeout);
 				}
@@ -198,10 +198,9 @@ public class ICMPSharedPinger implements Pinger {
 							LOG.finest("Received " + packet.getSequenceNumber() + packet.getSourceAsInetAddress() + ": " + time);
 						}
 
-						result.totalTime += time;
-						result.replyCount++;
+						result.addReply(time);
 						// TTL should be the same among all packets
-						result.ttl = packet.getTTL() & 0xFF;
+						result.setTTL(packet.getTTL() & 0xFF);
 						
 						synchronized (result) {
 							// notify the sender that we have an answer :-)
diff --git a/src/net/azib/ipscan/core/net/PingResult.java b/src/net/azib/ipscan/core/net/PingResult.java
index 753de288..a576cc09 100755
--- a/src/net/azib/ipscan/core/net/PingResult.java
+++ b/src/net/azib/ipscan/core/net/PingResult.java
@@ -14,23 +14,42 @@ public class PingResult {
 
 	InetAddress address;
 
-	int ttl;
-	long totalTime;
-	int replyCount;
+	private int ttl;
+	private long totalTime;
+	private long longestTime;
+	private int replyCount;
 	
 	public PingResult(InetAddress address) {
-		this.address = address;
-		
+		this.address = address;		
+	}
+	
+	public void addReply(long time) {
+		replyCount++;
+		if (time > longestTime)
+			longestTime = time;
+		totalTime += time;
 	}
 
 	public int getTTL() {
 		return ttl;
 	}
 	
+	public void setTTL(int ttl) {
+		this.ttl = ttl;
+	}
+	
 	public int getAverageTime() {
 		return (int)(totalTime / replyCount);
 	}
 	
+	public int getLongestTime() {
+		return (int)longestTime;
+	}
+	
+	public int getReplyCount() {
+		return replyCount;
+	}
+	
 	/**
 	 * @return true in case at least one reply was received
 	 */
diff --git a/src/net/azib/ipscan/core/net/TCPPinger.java b/src/net/azib/ipscan/core/net/TCPPinger.java
index 84ef1c6b..f360797f 100755
--- a/src/net/azib/ipscan/core/net/TCPPinger.java
+++ b/src/net/azib/ipscan/core/net/TCPPinger.java
@@ -40,12 +40,10 @@ public class TCPPinger implements Pinger {
 		long startTime = System.currentTimeMillis();
 		try {
 			socket.connect(new InetSocketAddress(address, PROBE_TCP_PORT), timeout);
-			result.replyCount++;
-			result.totalTime+=System.currentTimeMillis()-startTime;
+			result.addReply(System.currentTimeMillis()-startTime);
 		}
 		catch (ConnectException e) {
-			result.replyCount++;
-			result.totalTime+=System.currentTimeMillis()-startTime;
+			result.addReply(System.currentTimeMillis()-startTime);
 		}
 		catch (SocketTimeoutException e) {
 		}
diff --git a/src/net/azib/ipscan/core/net/UDPPinger.java b/src/net/azib/ipscan/core/net/UDPPinger.java
index 5e4be830..09dc52c3 100755
--- a/src/net/azib/ipscan/core/net/UDPPinger.java
+++ b/src/net/azib/ipscan/core/net/UDPPinger.java
@@ -44,8 +44,7 @@ public class UDPPinger implements Pinger {
 				socket.receive(packet);
 			}
 			catch (PortUnreachableException e) {
-				result.replyCount++;
-				result.totalTime+=System.currentTimeMillis()-startTime;
+				result.addReply(System.currentTimeMillis()-startTime);
 			}
 			catch (SocketTimeoutException e) {
 			}
diff --git a/src/net/azib/ipscan/fetchers/PortsFetcher.java b/src/net/azib/ipscan/fetchers/PortsFetcher.java
index 72102c06..1f323ba4 100755
--- a/src/net/azib/ipscan/fetchers/PortsFetcher.java
+++ b/src/net/azib/ipscan/fetchers/PortsFetcher.java
@@ -36,7 +36,6 @@ public class PortsFetcher implements Fetcher {
 	
 	public PortsFetcher(GlobalConfig globalConfig) {
 		this.config = globalConfig;
-		this.portIteratorPrototype = new PortIterator(config.portString);
 	}
 
 	public String getLabel() {
@@ -62,9 +61,9 @@ public class PortsFetcher implements Fetcher {
 			
 			// now try to adapt timeout if it is enabled and pinging results are availbale
 			PingResult pingResult = (PingResult) subject.getParameter(PingFetcher.PARAMETER_PINGER);
-			if (config.adaptPortTimeout && pingResult.isAlive()) {
+			if (config.adaptPortTimeout && pingResult.getReplyCount() > 2) {
 				// TODO: use longest time istead of the average one for adapting
-				adaptedTimeout = Math.min(Math.max(pingResult.getAverageTime() * 4, 30), config.portTimeout);
+				adaptedTimeout = Math.min(Math.max(pingResult.getLongestTime() * 4, 50), config.portTimeout);
 			}
 			
 			Socket socket = null;
@@ -129,6 +128,8 @@ public class PortsFetcher implements Fetcher {
 	}
 
 	public void init() {
+		// rebuild port iterator before each scan
+		this.portIteratorPrototype = new PortIterator(config.portString);
 	}
 
 	public void cleanup() {