diff --git a/core/java/android/net/ProxyProperties.java b/core/java/android/net/ProxyProperties.java
index 648a4b3..78ac75f 100644
--- a/core/java/android/net/ProxyProperties.java
+++ b/core/java/android/net/ProxyProperties.java
@@ -178,7 +178,7 @@
         // If PAC URL is present in either then they must be equal.
         // Other parameters will only be for fall back.
         if (!TextUtils.isEmpty(mPacFileUrl)) {
-            return mPacFileUrl.equals(p.getPacFileUrl());
+            return mPacFileUrl.equals(p.getPacFileUrl()) && mPort == p.mPort;
         }
         if (!TextUtils.isEmpty(p.getPacFileUrl())) {
             return false;
@@ -219,6 +219,7 @@
         if (mPacFileUrl != null) {
             dest.writeByte((byte)1);
             dest.writeString(mPacFileUrl);
+            dest.writeInt(mPort);
             return;
         } else {
             dest.writeByte((byte)0);
@@ -244,7 +245,9 @@
                 String host = null;
                 int port = 0;
                 if (in.readByte() != 0) {
-                    return new ProxyProperties(in.readString());
+                    String url = in.readString();
+                    int localPort = in.readInt();
+                    return new ProxyProperties(url, localPort);
                 }
                 if (in.readByte() != 0) {
                     host = in.readString();
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 5695ee5..70418e8 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -353,6 +353,11 @@
      */
     private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15;
 
+    /**
+     * PAC manager has received new port.
+     */
+    private static final int EVENT_PROXY_HAS_CHANGED = 16;
+
     /** Handler used for internal events. */
     private InternalHandler mHandler;
     /** Handler used for incoming {@link NetworkStateTracker} events. */
@@ -679,7 +684,7 @@
                 },
                 new IntentFilter(filter));
 
-        mPacManager = new PacManager(mContext);
+        mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED);
 
         filter = new IntentFilter();
         filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION);
@@ -3124,6 +3129,10 @@
                     handleNetworkSamplingTimeout();
                     break;
                 }
+                case EVENT_PROXY_HAS_CHANGED: {
+                    handleApplyDefaultProxy((ProxyProperties)msg.obj);
+                    break;
+                }
             }
         }
     }