code: @Override
      public void onAuthFailure(BoxAuthentication.BoxAuthenticationInfo info, Exception ex) {
          if (sameUser(info) || (info == null && getUserId() == null)) {
              if (sessionAuthListener != null) {
                  sessionAuthListener.onAuthFailure(info, ex);
              }
              if (ex instanceof BoxException) {
                  BoxException.ErrorType errorType = ((BoxException) ex).getErrorType();
                  switch (errorType) {
                      case NETWORK_ERROR:
                          toastString(mApplicationContext, R.string.boxsdk_error_network_connection);
                          break;
                      case IP_BLOCKED:
  
                  }
              }
          }
  
      }
docs: Called when a failure occurs trying to authenticate or refresh.
  
  @param info The last authentication information available, before the exception.
  @param ex   the exception that occurred.