Seems to be the DNS address, people who switched to Google or Cloudflare, reported they had no more problems with Qobuz. BT router you can't change the DNS unkess you have tge business account. Don't know about fibre.I have the fibre BT connection.. Using same streaming app and streamer and don't suffer these issues on tidal... Is a strange one I may have signed up for 12 months with qoboz otherwise
I have used Tidal and Deezer without any problems.