To maintain network security and avoid malware, always download VPN software directly from official Zyxel repositories. Avoid third-party mirror sites. 1. The Zyxel Download Library (Primary Source)
Note that the SecuExtender SSL VPN Client has reached end-of-life (EOL), but the SecuExtender IPSec VPN Client remains the current, supported standard for IPSec connectivity. zyxel ipsec vpn client download link
You can access the official installer files through several Zyxel support and resource channels: Zyxel Official Download Page : The primary landing page for the SecuExtender IPSec and SSL VPN Client To maintain network security and avoid malware, always
Restart your computer if prompted to ensure the virtual network drivers initialize correctly. ⚙️ How to Configure Your First VPN Connection zyxel ipsec vpn client download link