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TL;DR What's the replacement via CLI, programmatically, &| reliable AppleScript-fu. Scenario Auto-switching between Ethernet adapters (i.e., built-in MAC official/unofficial Ethernet adapters, third-party 10 GbE USB-C), and Wi-Fi. Problem Standard operation in post-Network Location macOS leads to assigning multiple IP addresses, causing havoc with applications and network services. Disabling Wi-Fi manually is non-starter. Goal Disassociate from Wi-Fi programmatically or from the CLI without powering off Wi-Fi to retain Wi-Fi PAN services such as AirDrop and AirPlay. (Previous) Solution Calls airport -z when needed to disassociate. Re-associate with other magic tools when Ethernet becomes unreachable. It worked reliably for over a year. Invocation sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -z Expected (previous) behavior Wi-Fi disassociates but remains powered on Actual behavior Output WARNING: The airport command line tool is deprecated and will be removed in a future release. For diagnosing Wi-Fi related issues, use the Wireless Diagnostics app or wdutil command line tool. (nothing happens) Platform 14.4 (23E214) m1/arm64