Hello. We are currently experiencing an issue with Xfinity Home that is preventing some customers to be able to connect through the web portal and/or the mobile applications. We are working hard to restore these services as quickly as possible. Systems can still be armed and disarmed from the touchscreen in the home but not through the mobile applications or web portals. Thank you for your patience!
Update: Our engineers are still actively working to resolve the issue affecting the Xfinity Home Mobile App & Portal. Users may see functionality come back intermittently before it is fully restored. - ComcastRachelH