If none of the above works then router? If possible ditch Wi-Fi. Additionally at times all internet connections hiccup. Is your power 100%?
I’m in a black hole for internet reception and finally got Starlink. It’s software shows all the things using the internet, some hard wired and some Wi-Fi. Eighteen is the tally!
I also use Qoboz and last night it stuttered and skipped back a few tracks. A first after two plus years.