diff --git a/xwords4/android/XWords4/res/values/common_rsrc.xml b/xwords4/android/XWords4/res/values/common_rsrc.xml
index ab0d93a49..7b2395bf6 100644
--- a/xwords4/android/XWords4/res/values/common_rsrc.xml
+++ b/xwords4/android/XWords4/res/values/common_rsrc.xml
@@ -153,6 +153,9 @@
   <string name="enable_dupes_title">Accept duplicate invites</string>
   <string name="enable_dupes_summary">Accept invitations more than once</string>
 
+  <string name="net_change_gained">Network connectivity GAINED</string>
+  <string name="net_change_lost">Network connectivity LOST</string>
+
   <!--string name="dict_url">http://10.0.2.2/~eehouse/and_dicts</string-->
 
   <string-array name="board_sizes">
diff --git a/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java b/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java
index 2c5fb618b..b9539178d 100644
--- a/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java
+++ b/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java
@@ -60,7 +60,8 @@ import org.eehouse.android.xw4.jni.*;
 public class GamesList extends XWExpandableListActivity 
     implements OnItemLongClickListener,
                DBUtils.DBChangeListener, SelectableItem, 
-               DictImportActivity.DownloadFinishedListener {
+               DictImportActivity.DownloadFinishedListener,
+               NetStateCache.StateChangedIf {
 
     private static final int WARN_NODICT       = DlgDelegate.DIALOG_LAST + 1;
     private static final int WARN_NODICT_SUBST = WARN_NODICT + 1;
@@ -133,6 +134,7 @@ public class GamesList extends XWExpandableListActivity
     private GameNamer m_namer;
     private long m_launchedGame = DBUtils.ROWID_NOTFOUND;
     private boolean m_menuPrepared;
+    private boolean m_netAvail;
     private HashSet<Long> m_selGames;
     private HashSet<Long> m_selGroupIDs;
     private CharSequence m_origTitle;
@@ -372,6 +374,8 @@ public class GamesList extends XWExpandableListActivity
 
         CrashTrack.init( this );
 
+        m_netAvail = NetStateCache.netAvail( this );
+
         m_selGames = new HashSet<Long>();
         m_selGroupIDs = new HashSet<Long>();
         getBundledData( savedInstanceState );
@@ -412,9 +416,17 @@ public class GamesList extends XWExpandableListActivity
         tryStartsFromIntent( intent );
     }
 
+    @Override
+    protected void onStart()
+    {
+        super.onStart();
+        NetStateCache.register( this, this );
+    }
+
     @Override
     protected void onStop()
     {
+        NetStateCache.unregister( this, this );
         // TelephonyManager mgr = 
         //     (TelephonyManager)getSystemService( Context.TELEPHONY_SERVICE );
         // mgr.listen( m_phoneStateListener, PhoneStateListener.LISTEN_NONE );
@@ -940,6 +952,22 @@ public class GamesList extends XWExpandableListActivity
             } );
     }
 
+    //////////////////////////////////////////////////////////////////////
+    // NetStateCache.StateChangedIf 
+    //////////////////////////////////////////////////////////////////////
+    public void netAvail( boolean nowAvailable )
+    {
+        if ( m_netAvail != nowAvailable ) {
+            m_netAvail = nowAvailable;
+            if ( BuildConfig.DEBUG ) {
+                int id = nowAvailable ?
+                    R.string.net_change_gained : R.string.net_change_lost;
+                Utils.showToast( this, id );
+                DbgUtils.logf( "GamesList.netAvail(%s)", getString( id ) );
+            }
+        }
+    }
+
     private void setTitleBar()
     {
         int fmt = 0;