

| Issue | Likely Cause | Solution | |-------|--------------|----------| | Extension not found | Wrong Altium version | Download extension matching exact Altium build number | | Missing dependencies | Not all prerequisite extensions downloaded | Download entire dependency tree (use --include-dependencies flag) | | “Invalid license” | Licensing service offline | Ensure network license server is accessible or use standalone license | | Installation fails silently | Corrupted .alf file | Re-download extension and verify hash |
Once the package is on your target machine, you must redirect Altium Designer to use this local folder instead of the internet. altium extension offline install
Log in to your account on the Altium Downloads page. | Issue | Likely Cause | Solution |
To manage these, Altium Designer has the page. This is your control center for adding, removing, or updating the software's functionality. However, by default, this interface connects to Altium's cloud repository. The goal of an offline install is to make this process work without that direct connection. This is your control center for adding, removing,
The first step is to acquire the installer for the specific extension you need. For third-party extensions, the provider will typically give you a .DXP file. For official Altium extensions, you or your IT admin would download it from the Altium Downloads page or via the Altium account portal on a machine that does have internet access.