Users of macOS Sonoma 14.4 reported problems connecting USB hubs to Mac

Users of macOS Sonoma 14.4 reported problems connecting USB hubs to Mac

After upgrading to the latest version of macOS Sonoma 14.4, Mac users have encountered problems connecting to USB hubs and monitors with USB ports. Some have stopped detecting mice, keyboards and other peripherals.

USB hubs and hubs are not detected by the OS, and as a result, wired mice and keyboards are disconnected and do not work with the Mac. At the same time, connecting to a Mac on older systems or a Windows PC works, and peripherals function normally.

Here’s what they write on the MacRumors forum: “14.4 definitely breaks the functionality of the USB hub monitor. Everything was working fine until my work MBP updated to 14.4 and now no devices are detected. On my personal MBP, which is still running 14.3, everything is detected without issue. Obviously, the problem is related to the OS.”

And here’s a post from Reddit: My MacBook Pro 16 M2 Pro is connected to a Gigabyte M34WQ, 34-inch, IPS Ultrawide WQHD (3440 x 1440) monitor using a Thunderbolt 3 cable. The keyboard and mouse are connected to the monitor’s USB ports. After the update, they no longer appear on the MacBook. Everything was working fine before the update.”

Messages also appear on the Apple support forum: “I have the same problem with my MacBook Pro M2 Max 64GB RAM and Dell U3219Q monitor; none of the USB peripherals connected to the monitor’s USB hub are working. In contrast, all peripherals work fine when I connect my Windows computer to the Dell monitor. Also, I test each USB peripheral by plugging it directly into the Mac and sure enough, it works. I restarted the Mac and unplugged the monitor, trying every possible configuration or reboot sequence. Nothing works after Sonoma 14.4 update.

Several users have had some success by changing the “Allow accessories to connect” setting to “Ask about new accessories” in the Security section of System Preferences ➝ Privacy & Security.

Apple released macOS Sonoma 14.4 in March. More than 50 vulnerabilities have been fixed in the OS, including several critical bugs that bypass kernel memory protection and the ability to read location information. Vulnerabilities in the locator, AirDrop, mail, settings, software updates, and network extensions have also been fixed.

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