Qobuz api streams seem highly susceptible to dns resolution issues also some providers seem to have problems with them at certain times. Only recently I could not get it to work via any app not just Roon where it had worked flawlessly for years.
If you can change dns servers on your router try setting it to either Google’s DNS server 8.8.8.8 or Cloudflare 1.1.1.1 and see if it helps.