| Error Code | Description | Solution | |------------|-------------|----------| | | There is a problem with this Windows Installer package. | Run msiexec /unregister followed by msiexec /regserver . Then retry installation. | | Error 1603 | Fatal error during installation. | Uninstall any previous OpenVPN versions using the Microsoft Program Install and Uninstall troubleshooter. | | Error 1920 | Service 'OpenVPN Service' failed to start. | Ensure no other VPN service is conflicting (e.g., Cisco AnyConnect, WireGuard). Disable conflicting services. | | Pending reboot | A previous installation requires a reboot. | Reboot the machine, then run the MSI again. | | Digital signature invalid | The file is not verified or the certificate is revoked. | Do NOT proceed. Delete the file immediately and download from a trusted source. |
To verify if your connection is active after setup, use a service like IPLeak.net to check that your public IP and DNS servers match your VPN's location. Release Notes for OpenVPN Connect on Windows x64 openvpnconnect3804528msi verified
If you see a file named x64 openvpnconnect3804528msi verified on a third-party site, do not trust the label alone. Perform these checks: | Error Code | Description | Solution |
Do not execute. Delete the file. Download only from official sources. | | Error 1603 | Fatal error during installation
This article is for informational purposes only. Always refer to your organization’s security policies and OpenVPN’s official documentation for precise deployment guidelines.