Universal Control

Hello cdaniels5,

For help with Universal Control view the system requirements below found in the article here: Universal Control: Use a single keyboard and mouse between Mac and iPad

"Universal Control system requirements

Universal Control works with the following devices and operating systems. It requires one Mac and up to two other of these Mac or iPad devices. 

macOS Monterey 12.4 or later

• MacBook introduced in 2016 or later
• MacBook Pro introduced in 2016 or later
• MacBook Air introduced in 2018 or later
• Mac mini introduced in 2018 or later
• iMac introduced in 2017 or later, or iMac (Retina 5K, 27-inch, Late 2015)
• iMac Pro
• Mac Pro introduced in 2019 or later
• Mac Studio

iPadOS 15.4 or later

• iPad Pro (all models)
• iPad (6th generation) or later
• iPad Air (3rd generation) or later
• iPad mini (5th generation) or later

Additional requirements

• Each device must be signed in with the same Apple ID using two-factor authentication. Universal Control does not support Managed Apple IDs.
• Each device must be within 10 meters (30 feet) of each other and have Bluetooth, Wi-Fi, and Handoff turned on. 
• Your iPad must not be sharing its cellular connection and your Mac must not be sharing its internet connection."

You can also find helpful information from the guide page here: Use one keyboard and mouse to control Mac and iPad

Cheers.