Hi ILoveCallCentre
Welcome back to the community forums
Sorry to hear you're having issues with your apps and firestick at this time.
Checking the systems at our side we cannot see any issues with the hub itself and all looks good with your WiFi performance.
Is the issue with YouTube on a browser or through the an app on your firestick? Is it only the firestick that you see any issues on?
We can also see that your router has been on for 167+ days straight, so we recommend trying a reboot or even a 60 second pin hole reset on the router. This will revert any customisations back to factory settings and full update the router with firmware/software updates. Please do not reboot the router whilst it is completing the pin hole request.