You can manually activate your license if you have restricted access to the internet.
Step 1: Go to the Help/Licensing window in iC3D and make a note of the numbers in your installation ID. (Ignore the prefixes).
Also make a note of the License number that we have supplied to you.
Step 2: Visit: www.internetactivation.com. This will open a Nalpeiron License Trusted Activation page.
Step 3: Paste or type the installation ID numbers into the Installation ID field. Paste or type the License numbers into the License number field.
Check the, I have read and agreed to the terms and conditions check box. Then press the Generate Unlock Code/Certificate.
Step 4: Copy the generated code/certificate number and paste into the License Number field in iC3D Help/Licensing window. Select the Activate button and the license should activate.