Can I use Dynalink APP to configure Router when Internet connection is down?

Sure, starting from Dynalink APP release Android v2.0.9/IOS v2.0.8. We have added local login capability. Therefore, you can use Dynalink APP to configure your router even when there is no Internet access. However, you have to have a Dynalink account. Because we will use your Dynalink account information for authorization.