Fix macOS "Universal Control" Stuck

Mouse cursor won't move from your Mac to your iPad?

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The Symptom

The cursor hits the edge of the screen and stops, even though Universal Control is enabled on both devices.

The Fix

1. Reset the Screen Sharing Daemon

sudo killall -9 rapportd

1. Cycle Handoff Settings

Toggle Handoff OFF and ON on both the Mac and the iPad.

1. Check Display Arrangement

Go to System Settings > Displays > Arrange. Ensure the iPad is positioned correctly relative to your Mac's screen.

Pro Tip

Universal Control requires both devices to be signed into the same iCloud account with Two-Factor Authentication enabled. It will not work over a VPN.