MacOS 14.4 Update Causing USB Connectivity Issues for Some Users
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Some Mac users updating to macOS 14.4 are experiencing issues with USB hubs and monitors, with peripherals like mice and keyboards no longer being detected.
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Users have reported issues on forums like MacRumors, Reddit, Twitter, and Apple's forums.
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Possible fixes include changing a Privacy & Security setting to "Ask for new accessories" instead of allowing automatic connections.
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The issues appear to specifically relate to using USB hubs built into monitors and displays.
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Apple has not commented publicly, but is likely working on a fix in a future update.