My mobile phone is already connected to Dynalink Router, why Dynalink APP said it cannot find Dynalink Router?

Dynalink APP user login.dynalink DNS requests to find Dynalink Router. Please check if you manually set up remote DNS server (Google DNS or CLoudflare) on your mobile phone. If you do, please change DNS setting back to default (auto), or manually add Dynalink Router (default LAN IP as one of DNS server.