diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 8ead6f9..31872fe 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -2431,9 +2431,9 @@
 
         try {
             if (VDBG || DDBG) log("Setting MTU size: " + iface + ", " + mtu);
-            mNMS.setMtu(iface, mtu);
-        } catch (Exception e) {
-            Slog.e(TAG, "exception in setMtu()" + e);
+            mNetd.interfaceSetMtu(iface, mtu);
+        } catch (RemoteException | ServiceSpecificException e) {
+            Slog.e(TAG, "exception in interfaceSetMtu()" + e);
         }
     }
 
@@ -6700,11 +6700,11 @@
 
         try {
             if (null != newNetwork) {
-                mNMS.setDefaultNetId(newNetwork.network.netId);
+                mNetd.networkSetDefault(newNetwork.network.netId);
             } else {
-                mNMS.clearDefaultNetId();
+                mNetd.networkClearDefault();
             }
-        } catch (Exception e) {
+        } catch (RemoteException | ServiceSpecificException e) {
             loge("Exception setting default network :" + e);
         }
 
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index 641ba0d..3705aaa 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -6023,23 +6023,23 @@
         mCellNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_CELLULAR);
         mCellNetworkAgent.connect(true);
         trustedCallback.expectAvailableThenValidatedCallbacks(mCellNetworkAgent);
-        verify(mNetworkManagementService).setDefaultNetId(eq(mCellNetworkAgent.getNetwork().netId));
-        reset(mNetworkManagementService);
+        verify(mMockNetd).networkSetDefault(eq(mCellNetworkAgent.getNetwork().netId));
+        reset(mMockNetd);
 
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
         mWiFiNetworkAgent.connect(true);
         trustedCallback.expectAvailableDoubleValidatedCallbacks(mWiFiNetworkAgent);
-        verify(mNetworkManagementService).setDefaultNetId(eq(mWiFiNetworkAgent.getNetwork().netId));
-        reset(mNetworkManagementService);
+        verify(mMockNetd).networkSetDefault(eq(mWiFiNetworkAgent.getNetwork().netId));
+        reset(mMockNetd);
 
         mWiFiNetworkAgent.removeCapability(NET_CAPABILITY_TRUSTED);
         trustedCallback.expectAvailableCallbacksValidated(mCellNetworkAgent);
-        verify(mNetworkManagementService).setDefaultNetId(eq(mCellNetworkAgent.getNetwork().netId));
-        reset(mNetworkManagementService);
+        verify(mMockNetd).networkSetDefault(eq(mCellNetworkAgent.getNetwork().netId));
+        reset(mMockNetd);
 
         mCellNetworkAgent.removeCapability(NET_CAPABILITY_TRUSTED);
         trustedCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
-        verify(mNetworkManagementService).clearDefaultNetId();
+        verify(mMockNetd).networkClearDefault();
 
         mCm.unregisterNetworkCallback(trustedCallback);
     }