Can't connect to debugger

Hi there,
I’m not able to connect to debugger. It spins then times out.
I’m a new AppGyver user and haven’t connected the debugger before.
I’ve tried running Composer and the debugger on either Safari or Chrome on my Mac, connecting to the AppGyver app on my iPhone or browser.
Both are on the same Wifi. I’ve tried two different wifi’s.
I’ve rebooted Mac and iPhone.
I had iCloud private relay on, so turned this off for Mac and iPhone, but no change.
Any other ideas?