Turn off Wi-Fi and unplug Ethernet.
Before attempting installation, verify your Mac meets these technical benchmarks: Operating System INSTALL ADOBE ILLUSTRATOR CC 2020 ON MAC PRE
: Download and install the Creative Cloud Desktop app . Turn off Wi-Fi and unplug Ethernet
Important information about support for Adobe Illustrator 2020 (v24.x) INSTALL ADOBE ILLUSTRATOR CC 2020 ON MAC PRE