Stremio + Debrid with Sky ISP

Hi folks,

Please help me, I feel I am losing my mind with this one. I bought Real Debrid sub for my Dad for Christmas and it is being blocked (torrentio I believe) through his ISP Sky (UK). Yesterday I spent an hour at his trying to get it working to no avail, but as soon as I tethered his fire stick to my phone - all A-OK.

In Stremio the torrentio links are flat out not loading when programme is chosen whilst hooked up to Sky wireless. Just shows Addons 2/4 loaded, but never loads the links.

So far I have:

  1. Cleared caches and data from Stremio and resigned in.
  2. Reset torrentio settings to HD (torrential setup was blocked on my mac by ISP) and reloaded plugins on app.
  3. Reset fire stick.
  4. Installed latest version of stremio
  5. Turned off firewall on router
  6. Reset DNS to Google (8.8.8.8 and 4.4.4.4) on router
  7. Reset DNS on fire stick via wireless advanced settings to Google
  8. Installed my CyberGhost VPN, but this was also blocked with API not found issues
  9. Turned off Sky Guardian filter via mySky

Totally frustrating. Any ideas about next steps? Would a third party router and Sky in modem mode circumvent this?