Hi @Nipps,
Welcome to our Community Forums! Thank you for your first post and I'm very sorry to hear that you're having some issues with the All 4 App. I understand that this can be quite frustrating.
Can you confirm if your issue is with the All 4 App on your mobile phone, or on the 360TV box as your post suggests?
If you're having issues with the app when connected to WiFi, can you please reboot your Hub to see if this can help clear any issues? Have you tried to delete and then re-install the app to see if this will help?
Keep us updated on how you get on so we can help further. 🙂
Thank you.