Home does not work on my sisters devices

Hello mikimause9,

From what you've shared it sounds like you're experiencing an issue sharing your home. We recommend reviewing the guidance listed listed in the following support article: Share control of your home - Apple Support

"If you can't share control of a home



• To invite people to control your home while you're away and edit permissions for them, you need to set up a home hub. If you don't have a home hub set up, you can only invite people when you're home and connected to your home Wi-Fi network. Matter-enabled accessories require a home hub, such as Apple TV 4K or HomePod mini.
• If Home has been upgraded to the new Home architecture, you must set up a home hub to share control of your home.
• You and the people you invite need the latest version of iOS, iPadOS, or macOS.
• Make sure that you and the people you invite are signed in to iCloud on iPhone, iPad, or Mac. In iCloud settings, turn on Home.
• Make sure that you and the people you invite haven't blocked each other's phone number or Apple ID. Learn how to manage blocked phone numbers, contacts, and emails on iPhone or iPad and how to manage blocked callers on Mac."

We hope this helps!

Best regards.

Thanks for replying, mikimause9, and that additional info, it really helps! Glad to hear you were able to resolve this and we are here to help if you have technical questions in the future!

Have a great day and thanks for using the Apple Support Communities!