diff --git a/build.properties b/build.properties
index 1273505a7..6c66862df 100644
--- a/build.properties
+++ b/build.properties
@@ -3,7 +3,7 @@ javacSource=1.4
 javacTarget=1.4
 
 # Release Configuration
-releaseVersion=0.544
+releaseVersion=0.545
 releaseFile=yacy_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
 proReleaseFile=yacy_pro_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
 releaseFileParentDir=yacy
diff --git a/htroot/MessageSend_p.java b/htroot/MessageSend_p.java
index 75e65cac2..bfdd5f4ef 100644
--- a/htroot/MessageSend_p.java
+++ b/htroot/MessageSend_p.java
@@ -106,7 +106,7 @@ public class MessageSend_p {
                 prop.put("mode_permission",0);
 
 	        if (targetPeer != null) {
-	            yacyCore.peerActions.peerDeparture(targetPeer);
+	            yacyCore.peerActions.peerDeparture(targetPeer, "peer responded upon message send request: " + response);
 	        }
 	    } else {
             prop.put("mode_permission",1);
diff --git a/source/de/anomic/plasma/plasmaDHTTransfer.java b/source/de/anomic/plasma/plasmaDHTTransfer.java
index d94a0fc13..47688a48a 100644
--- a/source/de/anomic/plasma/plasmaDHTTransfer.java
+++ b/source/de/anomic/plasma/plasmaDHTTransfer.java
@@ -205,7 +205,7 @@ public class plasmaDHTTransfer extends Thread {
                 this.transferStatusMessage = "Transfer to peer " + this.seed.getName() + ":" + this.seed.hash + " failed:'" + error + "', Trying to reconnect ...";
                 
                 // force disconnection of peer
-                yacyCore.peerActions.peerDeparture(this.seed);
+                yacyCore.peerActions.peerDeparture(this.seed, "DHT Transfer: " + this.transferStatusMessage);
                 this.log.logWarning(this.transferStatusMessage);
                 
                 // calculate pause time
diff --git a/source/de/anomic/plasma/plasmaSwitchboard.java b/source/de/anomic/plasma/plasmaSwitchboard.java
index 981fc4abb..9e9bc6e79 100644
--- a/source/de/anomic/plasma/plasmaSwitchboard.java
+++ b/source/de/anomic/plasma/plasmaSwitchboard.java
@@ -2814,7 +2814,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
         // check if we got contact to peer and the peer respondet
         if ((page == null) || (page.get("delay") == null)) {
             log.logInfo("CRAWL: REMOTE CRAWL TO PEER " + remoteSeed.getName() + " FAILED. CAUSE: unknown (URL=" + urlEntry.url().toString() + "). Removed peer.");
-            yacyCore.peerActions.peerDeparture(remoteSeed);
+            yacyCore.peerActions.peerDeparture(remoteSeed, "remote crawl to peer failed; peer answered unappropriate");
             return false; // no response from peer, we will crawl this ourself
         }
         
diff --git a/source/de/anomic/yacy/yacyClient.java b/source/de/anomic/yacy/yacyClient.java
index 9631af38a..795c34249 100644
--- a/source/de/anomic/yacy/yacyClient.java
+++ b/source/de/anomic/yacy/yacyClient.java
@@ -97,7 +97,7 @@ public final class yacyClient {
         
         HashMap result = null;
         final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), null);
-        try {
+        for (int retry = 0; retry < 3; retry++) try {
             // generate request
             post.putASIS("count", "20");
             post.putASIS("seed", yacyCore.seedDB.mySeed.genSeedStr(post.get("key", "")));
@@ -114,14 +114,18 @@ public final class yacyClient {
                                null
                     ), "UTF-8"
             );
+            break;
         } catch (Exception e) {
             if (Thread.currentThread().isInterrupted()) {
                 yacyCore.log.logFine("yacyClient.publishMySeed thread '" + Thread.currentThread().getName() + "' interrupted.");
+                return -1;
             } else {
-                yacyCore.log.logFine("yacyClient.publishMySeed exception:" + e.getMessage());
+                yacyCore.log.logFine("yacyClient.publishMySeed thread '" + Thread.currentThread().getName() + "' exception: " + e.getMessage() + "; retry = " + retry); // here VERY OFTEN a 'Connection reset' appears. What is the cause?
+                // try again (go into loop)
             }
-            return -1;
+            result = null;
         }
+        
         if (result == null || result.size() < 3) {
             yacyCore.log.logFine("yacyClient.publishMySeed result error: " +
             ((result == null) ? "result null" : ("result=" + result.toString())));
@@ -400,7 +404,7 @@ public final class yacyClient {
             	);
         } catch (IOException e) {
             yacyCore.log.logFine("SEARCH failed FROM " + target.hash + ":" + target.getName() + " (" + e.getMessage() + "), score=" + target.selectscore + ", DHTdist=" + yacyDHTAction.dhtDistance(target.hash, wordhashes.substring(0, 12)));
-            yacyCore.peerActions.peerDeparture(target);
+            yacyCore.peerActions.peerDeparture(target, "search request to peer created io exception: " + e.getMessage());
             return null;
         }
 
diff --git a/source/de/anomic/yacy/yacyCore.java b/source/de/anomic/yacy/yacyCore.java
index 070cf97d2..cb15c7059 100644
--- a/source/de/anomic/yacy/yacyCore.java
+++ b/source/de/anomic/yacy/yacyCore.java
@@ -316,8 +316,9 @@ public class yacyCore {
                 this.added = yacyClient.publishMySeed(seed.getClusterAddress(), seed.hash);
                 if (this.added < 0) {
                     // no or wrong response, delete that address
-                    log.logInfo("publish: disconnected " + this.seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR) + " peer '" + this.seed.getName() + "' from " + this.seed.getPublicAddress());
-                    peerActions.peerDeparture(this.seed);
+                    String cause = "peer ping to peer resulted in error response (added < 0)";
+                    log.logInfo("publish: disconnected " + this.seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR) + " peer '" + this.seed.getName() + "' from " + this.seed.getPublicAddress() + ": " + cause);
+                    peerActions.peerDeparture(this.seed, cause);
                 } else {
                     // success! we have published our peer to a senior peer
                     // update latest news from the other peer
@@ -442,9 +443,10 @@ public class yacyCore {
 
                 final String address = seed.getClusterAddress();
                 log.logFine("HELLO #" + i + " to peer '" + seed.get(yacySeed.NAME, "") + "' at " + address); // debug
-                if ((address == null) || (seed.isProper() != null)) {
+                String seederror = seed.isProper();
+                if ((address == null) || (seederror != null)) {
                     // we don't like that address, delete it
-                    peerActions.peerDeparture(seed);
+                    peerActions.peerDeparture(seed, "peer ping to peer resulted in address = " + address + "; seederror = " + seederror);
                     sync.P();
                 } else {
                     // starting a new publisher thread
@@ -485,8 +487,9 @@ public class yacyCore {
                 if (seed != null) {
                     String address = seed.getPublicAddress();
                     log.logFine("HELLO x" + contactedSeedCount + " to peer '" + seed.get(yacySeed.NAME, "") + "' at " + address); // debug
-                    if ((address == null) || (seed.isProper() != null)) {
-                        peerActions.peerDeparture(seed);
+                    String seederror = seed.isProper();
+                    if ((address == null) || (seederror != null)) {
+                        peerActions.peerDeparture(seed, "initial peer ping to peer resulted in address = " + address + "; seederror = " + seederror);
                     } else {
                     	if (seed.alternativeIP != null) address = seed.alternativeIP + ":" + seed.getPort();
                         contactedSeedCount++;
@@ -495,7 +498,7 @@ public class yacyCore {
                             newSeeds = yacyClient.publishMySeed(address, seed.hash);
                             if (newSeeds < 0) {
                                 log.logInfo("publish: disconnected " + seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR) + " peer '" + seed.getName() + "' from " + seed.getPublicAddress());
-                                peerActions.peerDeparture(seed);
+                                peerActions.peerDeparture(seed, "initial peer ping to peer resulted in seed response < 0");
                             } else {
                                 log.logInfo("publish: handshaked " + seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR) + " peer '" + seed.getName() + "' at " + seed.getPublicAddress());
                             }
diff --git a/source/de/anomic/yacy/yacyPeerActions.java b/source/de/anomic/yacy/yacyPeerActions.java
index 193a4ea56..4b1e7d26c 100644
--- a/source/de/anomic/yacy/yacyPeerActions.java
+++ b/source/de/anomic/yacy/yacyPeerActions.java
@@ -351,9 +351,9 @@ public class yacyPeerActions {
         }
     }
 
-    private final void disconnectPeer(yacySeed seed) {
+    private final void disconnectPeer(yacySeed seed, String cause) {
         // we do this if we did not get contact with the other peer
-	    yacyCore.log.logFine("connect: no contact to a " + seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_VIRGIN) + " peer '" + seed.getName() + "' at " + seed.getPublicAddress());
+	    yacyCore.log.logFine("connect: no contact to a " + seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_VIRGIN) + " peer '" + seed.getName() + "' at " + seed.getPublicAddress() + ". Cause: " + cause);
         synchronized (seedDB) {
 	        if (!seedDB.hasDisconnected(seed.hash)) { disconnects++; }
             seed.put("dct", Long.toString(System.currentTimeMillis()));
@@ -372,10 +372,9 @@ public class yacyPeerActions {
         return res;
     }
     
-    public void peerDeparture(yacySeed peer) {
+    public void peerDeparture(yacySeed peer, String cause) {
         if (peer == null) return;
-        //System.out.println("PEER DEPARTURE:" + peer.toString());
-        disconnectPeer(peer);
+        disconnectPeer(peer, cause);
         // perform all actions
         Iterator i = actions.iterator();
         while (i.hasNext()) ((yacyPeerAction) i.next()).processPeerDeparture(peer);
diff --git a/yacy.network.unit b/yacy.network.unit
index 24d897701..421775fb7 100644
--- a/yacy.network.unit
+++ b/yacy.network.unit
@@ -60,13 +60,11 @@ network.unit.bootstrap.seedlist2 = http://low.audioattack.de/yacy/seed.txt
 network.unit.bootstrap.seedlist3 = http://www.lulabad.de/seed.txt
 network.unit.bootstrap.seedlist4 = http://www.yacy.net/seed.txt
 network.unit.bootstrap.seedlist5 = http://www.marcelhenseler.de/yacy/seed.txt
-network.unit.bootstrap.seedlist6 = http://www.dc-art.de/yacy/seed.txt
 
 # each network may use different yacy distributions.
 # the auto-updater can access network-specific update locations
 network.unit.update.location0 = http://yacy.net/Download.html
-network.unit.update.location1 = http://latest.yacy.net
-network.unit.update.location2 = http://www.findenstattsuchen.info/YaCy/latest/index.php
+network.unit.update.location1 = http://latest.yacy.de
 
 # properties for in-protocol response authentification:
 network.unit.protocol.control = uncontrolled