diff --git a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
index 96acac3..7624f9c 100644
--- a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
+++ b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
@@ -2408,6 +2408,15 @@
     }
 
     private void doTestBlockedStatusCallback() throws Exception {
+        // The test will need a stable active network that is persistent during the test.
+        // Try to connect to a wifi network and wait for it becomes the default network before
+        // starting the test to prevent from sudden active network change caused by previous
+        // executed tests.
+        if (mPackageManager.hasSystemFeature(FEATURE_WIFI)) {
+            final Network expectedDefaultNetwork = mCtsNetUtils.ensureWifiConnected();
+            mCtsNetUtils.expectNetworkIsSystemDefault(expectedDefaultNetwork);
+        }
+
         final DetailedBlockedStatusCallback myUidCallback = new DetailedBlockedStatusCallback();
         final DetailedBlockedStatusCallback otherUidCallback = new DetailedBlockedStatusCallback();
 
diff --git a/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java b/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java
index 3f2ff9d..df3a4aa 100644
--- a/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java
+++ b/tests/cts/net/util/java/android/net/cts/util/CtsNetUtils.java
@@ -170,7 +170,7 @@
         }
     }
 
-    private Network expectNetworkIsSystemDefault(Network network)
+    public Network expectNetworkIsSystemDefault(Network network)
             throws Exception {
         final CompletableFuture<Network> future = new CompletableFuture();
         final NetworkCallback cb = new NetworkCallback() {