Index: src/main/java/hudson/plugins/selenium/PluginImpl.java
===================================================================
--- src/main/java/hudson/plugins/selenium/PluginImpl.java	(revision 26353)
+++ src/main/java/hudson/plugins/selenium/PluginImpl.java	(working copy)
@@ -77,7 +78,10 @@
         File root = Hudson.getInstance().getRootDir();
         channel = createSeleniumGridVM(root, listener);
         hubLauncher = channel.callAsync(new HubLauncher(port));
-
+        try {
+            // Give the HUB some time to start.
+            Thread.sleep(2000);
+        } catch (InterruptedException ignore) {}
         Hudson.getInstance().getActions().add(this);
     }