Apple TV 4K unable to update to ISO 15 currently running iOS 14.0.1

I currently have an Apple TV 4K I have been trying to updated to the latest software over the past 2 1/2 years and consistently get unable to update update has been unsuccessful try again later.

I have contacted Apple support on numerous occasions and this issue is not resolved, I have many Apple products and every product updates this is an ongoing issue, I read on forums that Apple are aware of this issue. I also went into my local Apple Store and was told to contact Apple support as they are aware of the issue. The representative at the Apple Store advised that my 4K Apple TV unit without a USB C imports would be replaced. I have followed instructions from Apple care representatives reset the unit back to factory tried to update it and still get this same message unsuccessful update please try again later .

I need this ongoing issue resolved, I don’t think it’s right for something that you pay a lot of money for just fails