#macOS Ventura Finder: shows AirPort Time Capsule connected (showing both my username and a “Disconnect” button)
macOS System Settings > Time Machine: “couldn’t complete the backup”, “The backup disk is not available. Make sure the backup disk is connected…”
Sure thing, #Apple. 🙄
(Yes, my wireless Time Capsule is 10 years old this month. And yes, it’s ALWAYS been this flaky.)