<p>The BT Sport app closed on 12th October and has been replaced by discovery+. <a href="https://community.bt.com/t5/TNT-Sports-on-TV-Online-player/The-BT-Sport-app-is-closing-on-12th-October/td-p/2312034">Find out more about activating TNT Sports on the discovery+ app</a>.
Thanks for all the replies. Apologies about assuming the packet loss was the problem. It wasn't and it was to do with the automatic WiFi frequency. Setting to 5GHz frequency as standard fixed the issue. Cheers!