IOS app not switching from Internal URL to External URL when iphone goes out of home wifi range and switch to cellular mode

[nrenou-git]

iOS device model, version and app version Model Name: iPhone 12 Pro Max ( Tested with another iPhone 13 too ) Software Version: ios 18.3.1 App version: 2025.2 (2025.1177)

Home Assistant Core Version 2025.3.1 Supervisor 2025.03.2 Operating System 14.2 User Interface 20250306.0

Describe the bug IOS companion looses connectivity when the Iphone goes out of wifi range and auto switch to cellular mode.
Connection status in server settings stay on "Internal URL" instead of switching to "External URL" and the companion stay endlessly offline.

1 - To get the connection again i need to kill / restard the IOS companion, or manualy "clear frontend cache", or switch airplane mode ON / OFF on the iPhone

2 - IF I m on my home wifi connection and i switch off the wifi on the iphone, IOS companion switch immediatly as expected on external URL IF i connect again on my home wifi, IOS companion switch immediatly as expected on internal URL.

3 - The problem occurs when i m at home connected with "Internal URL" and i go out of home wifi range ( leaving home ... )

To Reproduce. Being connected with internal URL on home wifi then walk away from home wifi signal until Iphone switch to cellular

Additionnal info External URL is working and setuped with nabu casa. Home wifi name is setuped in internal server settings. All authorisation are granted on ios device. Position : always Exact position Bluetooth Local network Background updates Cellular