diff --git a/htroot/CrawlStartScanner_p.java b/htroot/CrawlStartScanner_p.java
index 3ad9fdba5..6b30b06c8 100644
--- a/htroot/CrawlStartScanner_p.java
+++ b/htroot/CrawlStartScanner_p.java
@@ -45,9 +45,11 @@ import de.anomic.server.serverObjects;
 import de.anomic.server.serverSwitch;
 
 public class CrawlStartScanner_p {
-
+    
+    private final static int CONCURRENT_RUNNER = 100;
+    
     public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
-
+        
         final serverObjects prop = new serverObjects();
         final Switchboard sb = (Switchboard)env;
 
@@ -104,7 +106,7 @@ public class CrawlStartScanner_p {
                     if (p >= 0) host = host.substring(0, p);
                     ia.add(Domains.dnsResolve(host));
                 }
-                final Scanner scanner = new Scanner(ia, 100, sb.isIntranetMode() ? 1000 : 5000);
+                final Scanner scanner = new Scanner(ia, CONCURRENT_RUNNER, sb.isIntranetMode() ? 100 : 3000);
                 if (post.get("scanftp", "").equals("on")) scanner.addFTP(false);
                 if (post.get("scanhttp", "").equals("on")) scanner.addHTTP(false);
                 if (post.get("scanhttps", "").equals("on")) scanner.addHTTPS(false);
@@ -119,7 +121,7 @@ public class CrawlStartScanner_p {
             }
             
             if (post.containsKey("scan") && "intranet".equals(post.get("source", ""))) {
-                final Scanner scanner = new Scanner(Domains.myIntranetIPs(), 100, sb.isIntranetMode() ? 100 : 3000);
+                final Scanner scanner = new Scanner(Domains.myIntranetIPs(), CONCURRENT_RUNNER, sb.isIntranetMode() ? 100 : 3000);
                 if ("on".equals(post.get("scanftp", ""))) scanner.addFTP(false);
                 if ("on".equals(post.get("scanhttp", ""))) scanner.addHTTP(false);
                 if ("on".equals(post.get("scanhttps", ""))) scanner.addHTTPS(false);
diff --git a/htroot/Wiki.html b/htroot/Wiki.html
index edfa3a8b7..36d22099b 100644
--- a/htroot/Wiki.html
+++ b/htroot/Wiki.html
@@ -197,7 +197,7 @@
     #(/versioning)#
     <p class="Navigation">
       <a href="Wiki.html">Start Page</a> -
-      <a href="Wiki.html?page=#[page]#&amp;">Return to #[page]#</a>
+      <a href="Wiki.html?page=#[page]#">Return to #[page]#</a>
     </p>
     #(/mode)#
 
diff --git a/source/net/yacy/cora/protocol/Scanner.java b/source/net/yacy/cora/protocol/Scanner.java
index cfe26efde..926ab0cc1 100644
--- a/source/net/yacy/cora/protocol/Scanner.java
+++ b/source/net/yacy/cora/protocol/Scanner.java
@@ -202,7 +202,7 @@ public class Scanner extends Thread {
                     /*for (Runner r: runner.keySet()) {
                         if (r.age() > 3000) synchronized(r) { r.interrupt(); }
                     }*/
-                    if (runner.size() >= this.runnerCount) Thread.sleep(1000);
+                    if (runner.size() >= this.runnerCount) Thread.sleep(30);
                 }
                 Runner runner = new Runner(uri);
                 this.runner.put(runner, PRESENT);
diff --git a/source/net/yacy/cora/protocol/TimeoutRequest.java b/source/net/yacy/cora/protocol/TimeoutRequest.java
index da0624ef2..c80e533ec 100644
--- a/source/net/yacy/cora/protocol/TimeoutRequest.java
+++ b/source/net/yacy/cora/protocol/TimeoutRequest.java
@@ -112,17 +112,23 @@ public class TimeoutRequest<E> {
     public static boolean ping(final String host, final int port, final int timeout) throws ExecutionException {
         return new TimeoutRequest<Boolean>(new Callable<Boolean>() {
             public Boolean call() {
+                //long time = System.currentTimeMillis();
                 try {
                     Socket socket = new Socket();
+                    //System.out.println("PING socket create = " + (System.currentTimeMillis() - time) + " ms (" + host + ":" + port + ")"); time = System.currentTimeMillis();
                     socket.connect(new InetSocketAddress(host, port), timeout);
+                    //System.out.println("PING socket connect = " + (System.currentTimeMillis() - time) + " ms (" + host + ":" + port + ")"); time = System.currentTimeMillis();
                     if (socket.isConnected()) {
                         socket.close();
                         return Boolean.TRUE;
                     }
+                    //System.out.println("PING socket close = " + (System.currentTimeMillis() - time) + " ms (" + host + ":" + port + ")"); time = System.currentTimeMillis();
                     return Boolean.FALSE;
                 } catch (UnknownHostException e) {
+                    //System.out.println("PING socket UnknownHostException = " + (System.currentTimeMillis() - time) + " ms (" + host + ":" + port + ")"); time = System.currentTimeMillis();
                     return Boolean.FALSE;
                 } catch (IOException e) {
+                    //System.out.println("PING socket IOException = " + (System.currentTimeMillis() - time) + " ms (" + host + ":" + port + ")"); time = System.currentTimeMillis();
                     return Boolean.FALSE;
                 }
             }