Tech Note

Fix Issue with Logitech Mouse and Keyboard Not Connecting to Mac. Using Logitech Unifying Receiver Dongle to Share Logitech Wireless Devices for Mac OS systems with ConnectPRO DDM class KVM switches.

Issues Found:

  • A lot of user complaints were reported that after upgrading to the newer macOS they can’t connect to their wireless mouse and wireless keyboard, the issue is not just limited to older macOS, but to the versions listed below:
    • MacOS 10/15 (Catalina)
    • MacOS 11 (Big Sur)
    • MacOS 12 (Monterey)
  • Wireless transceiver: Logitech Unifying Receiver Dongle
  • HID Devices:
    • MX Master Series (MX Master, MX Master 2, MX Master 3)
    • MX Anywhere Series (MX Anywhere, MX Anywhere 2, MX Anywhere 3)
    • Logitech Unifying Wireless keyboards, such as MX Keys, K780, MK850, etc.
  • Wireless connection only good for about 3 minutes before having random timeouts.



  1. Pair Unifying Receiver with the wireless HID devices with just single Unifying Receiver dongle. One Unifying Receiver can be paired with up to 6 unifying wireless HID devices.
  2. Plug in the Unifying Receiver to one of the USB DDM ports
  3. For all connected Mac OS systems to the DDM KVM switch:
    1. System Preference -> Security & Privacy
    2. Disable/uncheck Input Monitoring of Logitech,

      “Logi Options app” and “Logitech Unifying Software app”

    3. If you have Logitech dual-interface (USB-Bluetooth) HID devices with USB Unifying dongle, please also disable/uncheck the Bluetooth access of the “Logi Options app” and “Logitech Unifying Software app”
      Example below, the MX keys and MX Master 3 (dual interface keyboard mouse)

    4. Change of the Security & Privacy setup will be required to reboot/restart the connected Mac OS systems to take the setup affected.

    5. If you still have issues regarding disconnected HID devices, please refer to following repair suggestions:

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