diff --git a/pantheon/src/test/java/tech/pegasys/pantheon/RunnerTest.java b/pantheon/src/test/java/tech/pegasys/pantheon/RunnerTest.java
index 24f4cf435f..53eeec1e3d 100644
--- a/pantheon/src/test/java/tech/pegasys/pantheon/RunnerTest.java
+++ b/pantheon/src/test/java/tech/pegasys/pantheon/RunnerTest.java
@@ -67,7 +67,6 @@ import okhttp3.RequestBody;
 import okhttp3.Response;
 import org.assertj.core.api.Assertions;
 import org.awaitility.Awaitility;
-import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
@@ -78,13 +77,11 @@ public final class RunnerTest {
   @Rule public final TemporaryFolder temp = new TemporaryFolder();
 
   @Test
-  @Ignore
   public void fullSyncFromGenesis() throws Exception {
     syncFromGenesis(SyncMode.FULL);
   }
 
   @Test
-  @Ignore
   public void fastSyncFromGenesis() throws Exception {
     syncFromGenesis(SyncMode.FAST);
   }
@@ -158,6 +155,16 @@ public final class RunnerTest {
 
       executorService.submit(runnerAhead::execute);
 
+      // Wait for network to initialize to get the P2P UDP port
+      Awaitility.await()
+          .atMost(20, TimeUnit.SECONDS)
+          .ignoreExceptions()
+          .untilAsserted(() -> assertThat(runnerAhead.getP2pUdpPort()).isNotNull());
+      Awaitility.await()
+          .atMost(20, TimeUnit.SECONDS)
+          .ignoreExceptions()
+          .untilAsserted(() -> assertThat(runnerAhead.getP2pTcpPort()).isNotNull());
+
       final SynchronizerConfiguration syncConfigBehind =
           SynchronizerConfiguration.builder()
               .syncMode(mode)