Problems with Fire TV internet connectivity

Hi there!

I am facing a weird connection issue. All of a sudden, my Fire TV started getting problems with my Wi-Fi connection. For your information, I have my Next DoH config set on my Mikrotik router; thus, every single DNS query is sent through NextDNS. With that in mind, my Fire TV cannot connect to the internet when I use my network. However, when I use my iPhone as a hotspot, the Fire TV starts working.