0.0.0.1 Api.mcneel.com 2021 -

The Windows hosts file ( C:\Windows\System32\Drivers\etc\hosts ) allows users to map hostnames to IP addresses, effectively bypassing the DNS (Domain Name System). What the Command Does

Adding this line to your computer’s hosts file would block or redirect api.mcneel.com to an invalid address, preventing Rhino from reaching McNeel’s activation/license servers. 0.0.0.1 api.mcneel.com

If you did not add this yourself and are having issues with (e.g., license errors, activation loops, or inability to use cloud features), check your hosts file ( C:\Windows\System32\drivers\etc\hosts on Windows, /etc/hosts on Mac/Linux) and remove that line. or inability to use cloud features)

Managing licenses assigned to your McNeel account, allowing floating licenses over the internet. allowing floating licenses over the internet.