AirPort network drives fail after macOS 27 beta upgrade

A user says their Apple AirPort Extreme network drive disappeared after upgrading a MacBook Pro to macOS 27 Developer Beta. Shares that used to mount automatically at login were no longer available. AirportExtreme.local stopped resolving, and AirPort Utility was not compatible. A manual afp:// connection returned an error saying that type of URL is not supported.

Key points

  • The issue appeared after upgrading to macOS 27 Developer Beta.
  • The AirPort Extreme shared drive no longer mounted automatically.
  • AirportExtreme.local no longer worked for finding the device.
  • AirPort Utility had a compatibility problem.
  • The afp:// connection method was rejected as unsupported.

Quick term guide

AirPort Extreme
An older Apple Wi-Fi router that some people also used for shared storage.
network drive
Storage reached over a home or office network instead of inside the computer.
macOS 27 Developer Beta
An early test version of macOS meant for developers.
AirPort Utility
Apple’s app for setting up and managing AirPort devices.
compatible
Parts that can work together without causing a mismatch.
Mac mini
A small desktop computer made by Apple.
home server
A personal computer setup at home used to run services or store files instead of regular daily use.
software
Programs or apps that run on a computer or smartphone.
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