Are you trying to install an or a third-party plugin ? Share public link
The offline installer is not provided by default on the standard downloads page. To obtain it: Altium Account on the downloads page. Locate and click the "Need Offline Installer?"
Safely eject the drive and connect it to your offline Altium workstation.
Third-party extensions from the Altium Marketplace may have additional licensing requirements – verify offline support with the vendor. altium extension offline install
Extract the contents to a permanent local directory on the offline computer (e.g., C:\AltiumLocalRepository\ ). Step 3: Configure Altium Designer to Use the Local Path Open Altium Designer on the offline machine.
Open the AIS management console in a web browser via localhost:x or your internal server IP. Step 3: Import Extensions into the Local Repository
Altium will read the local directory and list the offline extensions under the "Available" category. Are you trying to install an or a third-party plugin
In the Extensions and Updates tab, click the in the top right corner. Locate the Installation Management section.
Once the path is set, Altium Designer will read the local folder as its primary source of truth instead of the cloud.
Follow the prompts to submit a request; once approved, a download link for a large ZIP file (containing the installer and extensions) will be provided. manually configure the local path for your offline extensions? Installing & Managing Altium Designer Locate and click the "Need Offline Installer
Change the source setting from the default Altium Cloud Vault to .
After the installation completes, restart Altium Designer to activate the new functionality. 4. Important Considerations
Fix: Double-check your local network IP path or directory syntax in Preferences. Ensure that your firewall isn't blocking internal communication ports used by AIS.