diff --git a/ReactAndroid/src/main/java/com/facebook/react/ReactActivity.java b/ReactAndroid/src/main/java/com/facebook/react/ReactActivity.java
index bbe9cad4473816..afe65b7fcdfe72 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/ReactActivity.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/ReactActivity.java
@@ -9,14 +9,18 @@
 
 import javax.annotation.Nullable;
 
+import android.Manifest;
 import android.app.Activity;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.os.Bundle;
+import android.support.v4.content.ContextCompat;
 import android.view.KeyEvent;
 
 import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler;
 import com.facebook.react.modules.core.PermissionAwareActivity;
 import com.facebook.react.modules.core.PermissionListener;
+import com.facebook.react.modules.network.OkHttpClientProvider;
 
 /**
  * Base Activity for React Native applications.
@@ -50,6 +54,10 @@ protected ReactActivityDelegate createReactActivityDelegate() {
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     mDelegate.onCreate(savedInstanceState);
+    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_NETWORK_STATE)
+        == PackageManager.PERMISSION_GRANTED) {
+      OkHttpClientProvider.addNetworkListenerToEvictIdleConnectionsOnNetworkChange(getApplicationContext());
+    }
   }
 
   @Override
diff --git a/ReactAndroid/src/main/java/com/facebook/react/modules/network/OkHttpClientProvider.java b/ReactAndroid/src/main/java/com/facebook/react/modules/network/OkHttpClientProvider.java
index 766290c40e067b..2b0cf5982703b0 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/modules/network/OkHttpClientProvider.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/modules/network/OkHttpClientProvider.java
@@ -7,12 +7,25 @@
 
 package com.facebook.react.modules.network;
 
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.os.AsyncTask;
 import android.os.Build;
+import android.os.Bundle;
 
 import com.facebook.common.logging.FLog;
+import com.facebook.react.ReactActivity;
+import com.facebook.react.bridge.ReactApplicationContext;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
+import java.util.Set;
+import java.util.WeakHashMap;
 import java.util.concurrent.TimeUnit;
 
 import javax.annotation.Nullable;
@@ -33,6 +46,9 @@ public class OkHttpClientProvider {
   // User-provided OkHttpClient factory
   private static @Nullable OkHttpClientFactory sFactory;
 
+  private final static Set<OkHttpClient> sClients = Collections.newSetFromMap(
+    new WeakHashMap<OkHttpClient, Boolean>());
+
   public static void setOkHttpClientFactory(OkHttpClientFactory factory) {
     sFactory = factory;
   }
@@ -43,6 +59,39 @@ public static OkHttpClient getOkHttpClient() {
     }
     return sClient;
   }
+
+  private static class EvictIdleConnectionsTask extends AsyncTask {
+    @Override
+    protected Object doInBackground(Object[] objects) {
+      for (OkHttpClient client: sClients) {
+        client.connectionPool().evictAll();
+        client.dispatcher().cancelAll();
+      }
+      return null;
+    }
+  }
+
+  /*
+    See https://github.com/facebook/react-native/issues/19709 for context.
+    We know that idle connections get corrupted when the connectivity state
+    changes to disconnected, but the debugging of this issue hasn't been
+    exhaustive and it's possible that other changes in connectivity also
+    corrupt idle connections. `CONNECTIVITY_ACTION`s occur infrequently
+    enough to go safe and evict all idle connections on every such action.
+   */
+  public static void addNetworkListenerToEvictIdleConnectionsOnNetworkChange(Context context) {
+    final BroadcastReceiver br = new BroadcastReceiver() {
+      @Override
+      public void onReceive(Context context, Intent intent) {
+        if (intent.getAction().equals(ConnectivityManager.CONNECTIVITY_ACTION)) {
+          new EvictIdleConnectionsTask().execute();
+        }
+      }
+    };
+    final IntentFilter intentFilter = new IntentFilter();
+    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
+    context.registerReceiver(br, intentFilter);
+  }
   
   // okhttp3 OkHttpClient is immutable
   // This allows app to init an OkHttpClient with custom settings.
@@ -54,7 +103,11 @@ public static OkHttpClient createClient() {
     if (sFactory != null) {
       return sFactory.createNewNetworkModuleClient();
     }
-    return createClientBuilder().build();
+    else {
+      final OkHttpClient client = createClientBuilder().build();
+      registerClientToEvictIdleConnectionsOnNetworkChange(client);
+      return client;
+    }
   }
 
   public static OkHttpClient.Builder createClientBuilder() {
@@ -68,6 +121,10 @@ public static OkHttpClient.Builder createClientBuilder() {
     return enableTls12OnPreLollipop(client);
   }
 
+  public static void registerClientToEvictIdleConnectionsOnNetworkChange(OkHttpClient client) {
+    sClients.add(client);
+  }
+
   /*
     On Android 4.1-4.4 (API level 16 to 19) TLS 1.1 and 1.2 are
     available but not enabled by default. The following method