Not sure what happened and I can’t find anything that screams out in my logs as to what the problem could be. But this started to happen in early March both of my Shark vacs now show up as unavailable.
I can still control them via the shark app on my phone and I also attempted to delete and reinstall the integration with the same response.
See https://github.com/home-assistant/core/issues/44775#issuecomment-976310841 for more info, the integration’s authentication token expires–might be something Shark changed at some point. But, you can “fix” it pretty well by making an automation to “Reload Config Entry” relevant to your device, similar to the screenshot below.
