diff --git a/voting-booth/src/test/java/meerkat/voting/NetworkVirtualPrinterTest.java b/voting-booth/src/test/java/meerkat/voting/NetworkVirtualPrinterTest.java
index 827bf93..80c9b72 100644
--- a/voting-booth/src/test/java/meerkat/voting/NetworkVirtualPrinterTest.java
+++ b/voting-booth/src/test/java/meerkat/voting/NetworkVirtualPrinterTest.java
@@ -37,6 +37,7 @@ public class NetworkVirtualPrinterTest {
     private static final String SUB_ADDRESS = "";
     private static final int PORT = 8080;
 
+    private Semaphore semaphore0;
     private Semaphore semaphore1;
     private Semaphore semaphore2;
     private Throwable thrown;
@@ -45,6 +46,9 @@ public class NetworkVirtualPrinterTest {
     private NetworkVirtualPrinter networkPrinter;
 
 
+
+
+
     private class ScanHandler implements FutureCallback<ScannedData> {
 
         private final ScannedData expectedData;
@@ -70,9 +74,11 @@ public class NetworkVirtualPrinterTest {
     private class CommitHandler extends OutputDeviceCommitCallback {
 
         private boolean success;
+        public String errorMessage;
 
         public CommitHandler(int requestId, long serialNumber) {
             super(requestId, serialNumber, null, null);
+            errorMessage = null;
             success = false;
         }
 
@@ -80,11 +86,13 @@ public class NetworkVirtualPrinterTest {
         public void onSuccess(Void v) {
             System.out.println("CommitHandler success");
             success = true;
+            semaphore0.release();
         }
 
         @Override
         public void onFailure(Throwable t) {
-            assertThat("Commit to ballot failed " + t.getMessage(), false);
+            errorMessage = "Commit to ballot failed " + t.getMessage();
+            semaphore0.release();
         }
 
         public boolean gotSuccess() {
@@ -95,9 +103,11 @@ public class NetworkVirtualPrinterTest {
     private class CastHandler extends OutputDeviceFinalizeCallback {
 
         private boolean success;
+        public String errorMessage;
 
         public CastHandler(int requestId, long serialNumber) {
             super(requestId, serialNumber, null, null);
+            errorMessage = null;
             success = false;
         }
 
@@ -110,8 +120,8 @@ public class NetworkVirtualPrinterTest {
 
         @Override
         public void onFailure(Throwable t) {
+            errorMessage = "Cast to ballot failed " + t.getMessage();
             semaphore1.release();
-            assertThat("Cast ballot failed " + t.getMessage(), false);
         }
 
         public boolean gotSuccess() {
@@ -126,6 +136,7 @@ public class NetworkVirtualPrinterTest {
 
         scanner = new PollingStationWebScanner(PORT, SUB_ADDRESS);
 
+        semaphore0 = new Semaphore(0);
         semaphore1 = new Semaphore(0);
         semaphore2 = new Semaphore(0);
         thrown = null;
@@ -136,11 +147,11 @@ public class NetworkVirtualPrinterTest {
             assertThat("Could not start server: " + e.getMessage(), false);
         }
 
+
         networkPrinter = new NetworkVirtualPrinter(ADDRESS + ":" + PORT);
         Thread outputThread = new Thread(networkPrinter);
         outputThread.setName("Meerkat VB-Output Thread");
         outputThread.start();
-
     }
 
     @Test
@@ -191,12 +202,14 @@ public class NetworkVirtualPrinterTest {
 
         CommitHandler commitHandler = new CommitHandler(0, serialNumber);
         networkPrinter.commitToBallot(plaintextBallot, signedEncryptedBallot, commitHandler);
+
+        semaphore0.acquire();
+
         CastHandler castHandler = new CastHandler(1, serialNumber);
         networkPrinter.castBallot(castHandler);
 
-
-
         semaphore1.acquire();
+
         semaphore2.acquire();
 
         // Make sure the response was valid