Hello,
In January 2025 I started to have connection issues on my Android phone and Samsung TV when connected via Wi-Fi, certain random apps wouldn’t work properly, or at all: Plex, Weather Undergroud, iRobot, Tinder… I suspected the DNS because with mobile data (not Sunrise) worked fine. I changed several times back and forth the static DNS on my Sunrise Internet Box Fiber (from 2018) to different providers including Sunrise’s, until suddenly it started working again with Cloudflare on my nth attempt.
Until again a few weeks ago. No matter how many times or to what provider I change the DNS, still doesn’t work. It fails on both 2.4 and 5.0 bands, and the Guest network. I tried resetting the box to factory defaults, and forgetting the networks on my devices. Nothing works. I was suspecting a hardware issue but I don’t see how, as the DNS seems to properly change.
Any ideas? It´s pretty annoying turning the Wi-Fi on and off depending on which app I’ll use…