retrofit offline cache

hej mam problem, probuje zrobic cache za pomoca retrofita i okhttp

gdy uruchamiam aplikacje w logach widze ze gdy nie ma internetu to tworzy mi cache ale gdy juz jest polaczenie z internetem to ich nie wysyła

public class RestClient {

       final Context context;
    public static int CACHE_EXPIRATION_IN_SECONDS = 30;
    OkHttpClient.Builder okHttpBuilder;
    public RestClient(Context context){
    this.context=context;
        }

    public Retrofit provideRetrofit()  {
                    final HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
            loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        
        initRequest();

        Retrofit.Builder builder = new Retrofit.Builder();
        builder.baseUrl(API.url);

        builder.addConverterFactory(GsonConverterFactory.create());
        builder.client(okHttpBuilder.build());

        return builder.build();
        }

    public  void initCache(OkCacheControl.NetworkMonitor networkMonitor,
                                 long timeValue,
                                 TimeUnit timeUnit,
                                 Cache cache) {
         okHttpBuilder = OkCacheControl
                .on(new OkHttpClient.Builder())
                .forceCacheWhenOffline(networkMonitor)
                .overrideServerCachePolicy(timeValue, timeUnit)
                .apply()
                .addNetworkInterceptor(loggingInterceptor)

                .cache(cache);
    }
    private OkCacheControl.NetworkMonitor provideNetworkMonitor() {
        return new OkCacheControl.NetworkMonitor() {
            @Override
            public boolean isOnline() {
                return checkIfHasNetwork();
            }
        };
    }

    public boolean checkIfHasNetwork()
    {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService( Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = cm.getActiveNetworkInfo();
        return networkInfo != null && networkInfo.isConnected();
    }

    private void initRequest() {
        int Mibs = 1024 * 1024;
        int cacheSizeInMibs = 50;

        Cache cache = null;
        File httpCacheDirectory = new File(context.getCacheDir(), "network_responses");
        try {
            httpCacheDirectory.mkdirs();
            cache = new Cache(httpCacheDirectory, cacheSizeInMibs * Mibs );
            int length = httpCacheDirectory.listFiles().length;
            Log.i("cache", length + "files in cache");
        } catch (Exception e) {
            e.printStackTrace();
            Log.d( "das", "Could not create Cache!" );
        }

        initCache(provideNetworkMonitor(), CACHE_EXPIRATION_IN_SECONDS, TimeUnit.SECONDS, cache);

    }
}

I/cache: 9files in cache

 @GET("start/{a}/{b}")
    Call<SendDB> start(@Path("a") String a,
                                 @Path("b") String b);