Firmware
- FAQ - Security Appliances and Services
- Security Vulnerability Alert and Firmware Patches - Firewall Series
- SSO Agent 2.0 - Supporting AD Windows Server 2019
- Can I route all traffic via site to site VPN?
- Changing the downloadable firmware slot on ATP / VPN / Zywall / USG series routers
- Download Firmware from MyZyxel for your Security device (FLEX, ATP, USG, VPN, ZYWALL)
- FAQ: Enhanced Information for CVE-2020-29583 - Zyxel security advisory for hardcoded credential vulnerability
- FQDN - Firmware Upgrade Steps for devices updating from 4.39-4.55 Firmware Version
- How can I update the firmware automatically from a USB storage?
- How to upgrade USG devices via cloud-service
- I can´t use Cloud Firmware Upgrade due to an error message "ITS installed"
- I have an old firmware version on my USG/ATP/VPN and want to upgrade - what's the best way to do so?
- Issues downloading AP firmware from Cloud Server on firewall
- My Firmware-Upgrade-Service on my USG/ATP/VPN has expired - how can I refresh it ?
- NBG-418Nv2 - General Troubleshooting
- Overview of Helpful CLI Commands for USG Series (Best Practice)
- Security Products - Firmware Overview (FLEX, ATP, USG, VPN, ZYWALL)
- Two-Factor with Captive Portal Authentication and Google Authenticator
- Upgrading the firmware of your USG / ATP / VPN device done properly
- USG & Zywall - Firmware update per FTP
- USG Firewall crash logging procedure
- Weekly Firmware / Support Version / Lab Version
- Welcome to our Zyxel Support Campus Portal
- ZyWALL USG Firmware Update in Device HA Mode
- Zywall-USG shows empty blue page after Firmware-Update to 4.25
