Manually activate your Unity license if you’re unable to activate it using the other methods.
Important: Manual license activation requires internet connectivity. However, the manual activation method requires internet connectivity for only one part of the process, and you can do that part on any connected computer; not necessarily the same computer where you’ll use Unity.
There are two options for manually activating a license:
Submit a license request using the command line and browser:
If you manually activate a license, you can’t return it by using the other license management methods; you’ll need to contact support to assist with the return.