This might refresh your internet connection and get the BBC iPlayer app up and running again for you. Update your device's firmware (this is usually in device ‘settings/system information’)
If BBC iPlayer is failing or struggling to load on your connected TV, we recommend: ensuring your TV's firmware is up to date; trying a factory reset BBC admits iPlayer has lost streaming fight with Netflix Apr 25, 2019 BBC iPlayer will not install on Stick+ - Roku Community
BBC Iplayer problem on U9-H | MINIX Forum
BBC iPlayer problems on Roku - RXTV Info | RXTV log May 31, 2020 BBC Iplayer WiFi problems - Microsoft® Community
BBC has solved the iPlayer 'streaming lag' problems
Jun 11, 2020 BBC iPlayer VPN Not Working? A Simple Workaround Can Jul 19, 2020 Solved: BBC IPLAYER PROBLEM - NOW TV Community The BBC iplayer app is incredibly slow to respond to any presses on the remote, often freezing and requiring to go back to home and re open, but this can take ages. i had uninstalled and reinstalled app, ensured software is up to date, and reset the nowtv box, but nothing improves it. Other apps such as 4 and ITV work fine. i have the white box.