iPhone 12 - No internet connection when connecting to Wifi

I've had a strange experience:

• My iPhone 12 (iOS 16.3.1) shows "No internet connection" with my home wifi network

• My router is fine, all my other devices, including an iPad were connected and working

• Restarted by router, just in case. No luck.

• Restarted my iPhone twice. No luck.

• Reset network settings. No luck.

• Switched off Private Wi-Fi Address, Limit IP Address Tracking and Wi-Fi Assist, then restarted. Success! iPhone connected to my Wi-Fi again.

• However, when I switched those settings back on, I found that choosing "Limit IP Address Tracking" caused the phone to show the "No internet connection" warning again

• Again, I switched off Private Wi-Fi Address, Limit IP Address Tracking and Wi-Fi Assist, then restarted. Then I turned them back on, one at a time (Private, Limit and then Wi-Fi Assist). Now, this time, it's working again and stable. Very odd.

If anyone else is experiencing this issue, might be worth trying the steps above.