Debugging over Wi-Fi has long been unreliable, and it can seriously slow watchOS development. I’m a longtime Apple fan, but this has been frustrating.
**Workaround:** Turn on a hotspot on your Mac and connect both the Apple Watch and its paired iPhone to that network. After doing so, debugging works again.
**Tested with:** Xcode 16.4 · watchOS 8–11 · macOS 15.6.1

Debugging over Wi-Fi has been unreliable for a long time, which can significantly slow watchOS development. I’m a longtime Apple fan, but this has been frustrating.
Simple workaround:
**Turn on a hotspot on your Mac and connect both the Apple Watch and its paired iPhone to it. After that, debugging generally works again.**
XCode 16.4, watchOS several from 8-11, OSX 15.6.1