diff --git a/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java b/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java
index 4a54451636509..ec4141518f827 100644
--- a/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java
+++ b/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java
@@ -1053,7 +1053,8 @@ public class AccessPoint implements Comparable<AccessPoint> {
     }
 
     /** Attempt to update the AccessPoint and return true if an update occurred. */
-    public boolean update(WifiConfiguration config, WifiInfo info, NetworkInfo networkInfo) {
+    public boolean update(
+            @Nullable WifiConfiguration config, WifiInfo info, NetworkInfo networkInfo) {
         boolean updated = false;
         final int oldLevel = getLevel();
         if (info != null && isInfoForThisAccessPoint(config, info)) {
@@ -1088,9 +1089,9 @@ public class AccessPoint implements Comparable<AccessPoint> {
         return updated;
     }
 
-    void update(WifiConfiguration config) {
+    void update(@Nullable WifiConfiguration config) {
         mConfig = config;
-        networkId = config.networkId;
+        networkId = config != null ? config.networkId : WifiConfiguration.INVALID_NETWORK_ID;
         if (mAccessPointListener != null) {
             mAccessPointListener.onAccessPointChanged(this);
         }
diff --git a/packages/SettingsLib/tests/integ/src/com/android/settingslib/wifi/AccessPointTest.java b/packages/SettingsLib/tests/integ/src/com/android/settingslib/wifi/AccessPointTest.java
index 5c64cff78a884..c08dd6ed97cd2 100644
--- a/packages/SettingsLib/tests/integ/src/com/android/settingslib/wifi/AccessPointTest.java
+++ b/packages/SettingsLib/tests/integ/src/com/android/settingslib/wifi/AccessPointTest.java
@@ -656,4 +656,28 @@ public class AccessPointTest {
         assertThat(ap.update(newConfig, wifiInfo, networkInfo)).isFalse();
         verify(mockListener).onAccessPointChanged(ap);
     }
+
+    @Test
+    public void testUpdateWithNullWifiConfiguration_doesNotThrowNPE() {
+        int networkId = 123;
+        int rssi = -55;
+        WifiConfiguration config = new WifiConfiguration();
+        config.networkId = networkId;
+        WifiInfo wifiInfo = new WifiInfo();
+        wifiInfo.setNetworkId(networkId);
+        wifiInfo.setRssi(rssi);
+
+        NetworkInfo networkInfo =
+                new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0 /* subtype */, "WIFI", "");
+        networkInfo.setDetailedState(NetworkInfo.DetailedState.CONNECTING, "", "");
+
+        AccessPoint ap = new TestAccessPointBuilder(mContext)
+                .setNetworkInfo(networkInfo)
+                .setNetworkId(networkId)
+                .setRssi(rssi)
+                .setWifiInfo(wifiInfo)
+                .build();
+
+        ap.update(null, wifiInfo, networkInfo);
+    }
 }