diff --git a/src/clientP2P/ClientDownloadUDP.java b/src/clientP2P/ClientDownloadUDP.java
index 50f4081..cd56769 100644
--- a/src/clientP2P/ClientDownloadUDP.java
+++ b/src/clientP2P/ClientDownloadUDP.java
@@ -64,7 +64,7 @@ public class ClientDownloadUDP extends ClientDownload {
 	 * @param hostItem	Hostitem of the server
 	 */
 	protected ClientDownloadPart createDownloadPart(HostItem hostItem) {
-		return (ClientDownloadPart)new ClientDownloadPartUDP((ClientDownload)this, filename, hostItem.getUDPSocket(), partsSubdir, logger, client, tracker);
+		return (ClientDownloadPart)new ClientDownloadPartUDP((ClientDownload)this, filename, hostItem.getUDPSocket(), partsSubdir, logger, client, hostItem);
 	}
 
 	/** Implementation of writeLog
diff --git a/src/tracker/TrackerManagement.java b/src/tracker/TrackerManagement.java
index d94da76..00c75ba 100644
--- a/src/tracker/TrackerManagement.java
+++ b/src/tracker/TrackerManagement.java
@@ -259,7 +259,11 @@ public abstract class TrackerManagement extends ServeErrors implements Runnable
 				while(readLock.get() > 0) {
 					this.wait();
 				}
-				if (!ratioDown.containsKey(updateRatioClient) || ! ratioUp.containsKey(updateRatioServer)) {
+				if (!ratioDown.containsKey(updateRatioClient)) {
+					writeLog("Unkwnow client host " + updateRatioClient, LogLevel.Debug);
+					sendUnknownHost(pd);
+				} else if (!ratioUp.containsKey(updateRatioServer)) {
+					writeLog("Unkwnow server host " + updateRatioServer, LogLevel.Debug);
 					sendUnknownHost(pd);
 				} else {
 					ratioDown.put(updateRatioClient, Long.valueOf(ratioDown.get(updateRatioClient).longValue() + ratioSize));