diff --git a/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java b/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java
index 45b6ef82ac..fe924f79c6 100644
--- a/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/PeerCoordinator.java
@@ -125,7 +125,7 @@ class PeerCoordinator implements PeerListener
   /** partial pieces - lock by synching on wantedPieces - TODO store Requests, not PartialPieces */
   private final List<PartialPiece> partialPieces;
 
-  private boolean halted = false;
+  private volatile boolean halted;
 
   private final MagnetState magnetState;
   private final CoordinatorListener listener;
@@ -429,6 +429,14 @@ class PeerCoordinator implements PeerListener
     }
   }
 
+  /**
+   *  @since 0.9.1
+   */
+  public void restart() {
+    halted = false;
+    timer.schedule((CHECK_PERIOD / 2) + _random.nextInt((int) CHECK_PERIOD));
+  }
+
   public void connected(Peer peer)
   { 
     if (halted)
diff --git a/apps/i2psnark/java/src/org/klomp/snark/Snark.java b/apps/i2psnark/java/src/org/klomp/snark/Snark.java
index acf5f15ed5..138f2dd2c8 100644
--- a/apps/i2psnark/java/src/org/klomp/snark/Snark.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/Snark.java
@@ -553,21 +553,14 @@ public class Snark
     }
 
     stopped = false;
-    boolean coordinatorChanged = false;
     if (coordinator.halted()) {
-        // ok, we have already started and stopped, but the coordinator seems a bit annoying to
-        // restart safely, so lets build a new one to replace the old
+        coordinator.restart();
         if (_peerCoordinatorSet != null)
-            _peerCoordinatorSet.remove(coordinator);
-        PeerCoordinator newCoord = new PeerCoordinator(_util, id, infoHash, meta, storage, this, this);
-        if (_peerCoordinatorSet != null)
-            _peerCoordinatorSet.add(newCoord);
-        coordinator = newCoord;
-        coordinatorChanged = true;
+            _peerCoordinatorSet.add(coordinator);
     }
-    if (!trackerclient.started() && !coordinatorChanged) {
+    if (!trackerclient.started()) {
         trackerclient.start();
-    } else if (trackerclient.halted() || coordinatorChanged) {
+    } else if (trackerclient.halted()) {
         if (storage != null) {
             try {
                  storage.reopen(rootDataDir);
diff --git a/history.txt b/history.txt
index ccc1e43c96..1955fa0309 100644
--- a/history.txt
+++ b/history.txt
@@ -1,4 +1,10 @@
 2012-06-24 zzz
+ * ElGamalAESEngine: Fix bad size estimate when tags are included,
+                     resulting in trailing zeros after the padding
+                     in the unencrypted data
+ * i2psnark: Don't create a new PeerCoordinator after restart, as the
+             TrackerClient holds on to the old one and that causes it
+             to not get peers. Possibly fixes ticket #563.
  * I2PTunnel: Fix NPE on shared client creation, thx kytv
  * Transport: Add Ethiopia to hidden mode list
 
diff --git a/router/java/src/net/i2p/router/RouterVersion.java b/router/java/src/net/i2p/router/RouterVersion.java
index 80cfb9c849..5b1ba79e39 100644
--- a/router/java/src/net/i2p/router/RouterVersion.java
+++ b/router/java/src/net/i2p/router/RouterVersion.java
@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 18;
+    public final static long BUILD = 19;
 
     /** for example "-test" */
     public final static String EXTRA = "";