diff --git a/tests/cts/hostside/Android.bp b/tests/cts/hostside/Android.bp
index 741c961..47b114b 100644
--- a/tests/cts/hostside/Android.bp
+++ b/tests/cts/hostside/Android.bp
@@ -24,7 +24,6 @@
     // Tag this module as a cts test artifact
     test_suites: [
         "cts",
-        "vts10",
         "general-tests",
     ],
 }
diff --git a/tests/cts/hostside/app/Android.bp b/tests/cts/hostside/app/Android.bp
index e129be7..9903756 100644
--- a/tests/cts/hostside/app/Android.bp
+++ b/tests/cts/hostside/app/Android.bp
@@ -35,7 +35,6 @@
     // Tag this module as a cts test artifact
     test_suites: [
         "cts",
-        "vts10",
         "general-tests",
     ],
 }
diff --git a/tests/cts/hostside/app2/Android.bp b/tests/cts/hostside/app2/Android.bp
index a6e9b11..8e27931 100644
--- a/tests/cts/hostside/app2/Android.bp
+++ b/tests/cts/hostside/app2/Android.bp
@@ -23,7 +23,6 @@
     // Tag this module as a cts test artifact
     test_suites: [
         "cts",
-        "vts10",
         "general-tests",
     ],
     certificate: ":cts-net-app",
diff --git a/tests/cts/net/Android.bp b/tests/cts/net/Android.bp
index 4c00428..913380a 100644
--- a/tests/cts/net/Android.bp
+++ b/tests/cts/net/Android.bp
@@ -66,7 +66,6 @@
     defaults: ["CtsNetTestCasesDefaults"],
     test_suites: [
         "cts",
-        "vts10",
         "general-tests",
     ],
     test_config_template: "AndroidTestTemplate.xml",
diff --git a/tests/cts/net/TEST_MAPPING b/tests/cts/net/TEST_MAPPING
index 3162e22..9167c98 100644
--- a/tests/cts/net/TEST_MAPPING
+++ b/tests/cts/net/TEST_MAPPING
@@ -1,6 +1,6 @@
 {
   // TODO: move to mainline-presubmit once supported
-  "postsubmit": [
+  "presubmit": [
     {
       "name": "CtsNetTestCasesLatestSdk",
       "options": [
diff --git a/tests/cts/net/api23Test/Android.bp b/tests/cts/net/api23Test/Android.bp
index 0ce9826..e43a5e8 100644
--- a/tests/cts/net/api23Test/Android.bp
+++ b/tests/cts/net/api23Test/Android.bp
@@ -45,7 +45,6 @@
     // Tag this module as a cts test artifact
     test_suites: [
         "cts",
-        "vts10",
         "general-tests",
     ],
 
diff --git a/tests/cts/net/appForApi23/Android.bp b/tests/cts/net/appForApi23/Android.bp
index 399c199..cec6d7f 100644
--- a/tests/cts/net/appForApi23/Android.bp
+++ b/tests/cts/net/appForApi23/Android.bp
@@ -26,7 +26,6 @@
     // Tag this module as a cts test artifact
     test_suites: [
         "cts",
-        "vts10",
         "general-tests",
     ],
 
diff --git a/tests/cts/net/native/qtaguid/Android.bp b/tests/cts/net/native/qtaguid/Android.bp
index 23a0cf7..7c6e19f 100644
--- a/tests/cts/net/native/qtaguid/Android.bp
+++ b/tests/cts/net/native/qtaguid/Android.bp
@@ -42,7 +42,6 @@
     // Tag this module as a cts test artifact
     test_suites: [
         "cts",
-        "vts10",
     ],
 
     cflags: [
diff --git a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
index 70b1bbe..db4e3e7 100644
--- a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
+++ b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
@@ -17,6 +17,7 @@
 package android.net.cts;
 
 import static android.Manifest.permission.CONNECTIVITY_USE_RESTRICTED_NETWORKS;
+import static android.Manifest.permission.NETWORK_SETTINGS;
 import static android.content.pm.PackageManager.FEATURE_ETHERNET;
 import static android.content.pm.PackageManager.FEATURE_TELEPHONY;
 import static android.content.pm.PackageManager.FEATURE_USB_HOST;
@@ -41,6 +42,7 @@
 
 import static com.android.compatibility.common.util.SystemUtil.runShellCommand;
 import static com.android.compatibility.common.util.SystemUtil.runWithShellPermissionIdentity;
+import static com.android.testutils.TestPermissionUtil.runAsShell;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
@@ -103,6 +105,8 @@
 
 import libcore.io.Streams;
 
+import junit.framework.AssertionFailedError;
+
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -118,6 +122,7 @@
 import java.net.Inet6Address;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
+import java.net.MalformedURLException;
 import java.net.Socket;
 import java.net.URL;
 import java.net.UnknownHostException;
@@ -219,6 +224,16 @@
         if (mCtsNetUtils.cellConnectAttempted()) {
             mCtsNetUtils.disconnectFromCell();
         }
+
+        // All tests in this class require a working Internet connection as they start. Make
+        // sure there is still one as they end that's ready to use for the next test to use.
+        final TestNetworkCallback callback = new TestNetworkCallback();
+        mCm.registerDefaultNetworkCallback(callback);
+        try {
+            assertNotNull("Couldn't restore Internet connectivity", callback.waitForAvailable());
+        } finally {
+            mCm.unregisterNetworkCallback(callback);
+        }
     }
 
     /**
@@ -1499,4 +1514,17 @@
         return runShellCommand("cmd connectivity airplane-mode")
                 .trim().equals("enabled");
     }
+
+    @Test
+    public void testGetCaptivePortalServerUrl() {
+        final String url = runAsShell(NETWORK_SETTINGS, mCm::getCaptivePortalServerUrl);
+        assertNotNull("getCaptivePortalServerUrl must not be null", url);
+        try {
+            final URL parsedUrl = new URL(url);
+            // As per the javadoc, the URL must be HTTP
+            assertEquals("Invalid captive portal URL protocol", "http", parsedUrl.getProtocol());
+        } catch (MalformedURLException e) {
+            throw new AssertionFailedError("Captive portal server URL is invalid: " + e);
+        }
+    }
 }
diff --git a/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java b/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java
index 65a8c7c..92dca39 100644
--- a/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java
+++ b/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java
@@ -757,7 +757,7 @@
             if (!isWifiTetheringSupported(tetherEventCallback)) return;
 
             if (previousWifiEnabledState) {
-                mCtsNetUtils.disconnectFromWifi(null);
+                mCtsNetUtils.ensureWifiDisconnected(null);
             }
 
             final TestNetworkCallback networkCallback = new TestNetworkCallback();