airpod disconnecting in loop

Please try this

Change Connect Setting: Go to Settings > Bluetooth, tap the "i" icon next to your AirPods, find Connect to This iPhone, and change it from Automatically to When Last Connected to This iPhone

Forget and Re-pair: In the same Bluetooth menu, tap Forget This Device, place your AirPods in their case, close the lid for 30 seconds, and then hold the setup button until the light flashes white to reconnect them.

Turn Off Automatic Ear Detection: In your AirPods Bluetooth settings, toggle off Automatic Ear Detection to stop faulty sensor signals from triggering drops. 

Reset Network Settings: Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings to clear corrupted system connection caches. 

Disable VPN: Temporarily disable or completely remove active VPN profiles under Settings > General > VPN & Device Management, as third-party routing tools frequently conflict with iOS Bluetooth stability

I'm experiencing the same issue after upgrading to iOS 27. AirPods Pro 2 firmware 9A348. I've tried the above troubleshooting steps with the exception of reset network settings (not quite ready to nuke years of wifi passwords for this issue just yet).

I'm seeing the same issue but with macOS. Every time I change Automatically to When Last Connected to this Mac, the AirPods drop in a few seconds. I have multiple pairs of AirPods; all of them disappear from the Bluetooth list under Settings on the Mac. I have to toggle Bluetooth every time to see the full list. iOS 27 doesn't seem to have an issue for me. The issue started hours after I turned on Siri AI on my Mac. There wasn't any issue after the update a week ago. I think it's somehow related to Siri AI. I don't understand why it's an issue on the Mac. (Off topic, but I also started to see an issue with an annoying iCloud activation badge on the Settings icon on my iPhone after adding Siri AI. Even though I have an iCloud subscription active, the badge and activate request don’t disappear.)