For everyone here looking for answers, I stumbled onto a possible solution here.
First and foremost, as in my first suggestion, you must verify (establish) your connection to a WiFi network 🛜, not simply a mobile hotspot (my apologies for not being more precise in my first response).
If Apple Intelligence is stuck on your iPhone:
- Open Settings ➢ General ➢ iPhone Storage.
- Scroll to the bottom and tap ⚙️ iOS.
- Apple Intelligence should be fully downloaded if it reads: 2.56 GB.
If Apple Intelligence is stuck on your Mac:
- Open Settings ➢ General ➢ Storage.
- Scroll to the bottom and double-click ⚙️ macOS.
- Apple Intelligence should be fully downloaded if it reads: 4.94 GB.
Now, go directly to Settings ➢ Apple Intelligence & Siri and you should find the prompt or switch to toggle on Apple Intelligence.
Please provide any feedback if this has helped so we can all learn from this.
Good Luck! 👋🏼😉