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Knowledge Base
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Demo Zone
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Warranty
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Virtual Lab
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Configuration Service
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Wifi Site Survey
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Configuration Services
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Smart Support
Welcome to EMEA Support Portal, your direct Support options are as below:
For Registered Resellers/Partners: Submit a web support request or contact us via Phone support
For Consumers: Submit a web support request. Please note: We don’t offer Phone support
Discover our comprehensive online support resources, designed to assist Zyxel Customers worldwide.
Community Forum(English) | YouTube Channel(English) |
Education Center(English)
Download Library for Manual, firmware and quick start guides: Download Library
Tech Library offering additional technical information to business users: Tech Library
Product Selector helping selecting the products matching your needs: Product Selector
To open a support request, please enter the Serial Number of your device first.
If you don't know where to find the serial number Click here
KNOWLEDGE BASE
Next Generation Firewall
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Troubleshooting
- Office 365 / E-Mails couldn´t work | Incident 2/14 - Fixed
- Deep Insight - Tips & Tricks for Firewall Products
- VPN - Troubleshoot Site-to-Site VPN [Stand-alone mode]
- Firewall - Troubleshoot Configuration Upload [Convert Tool]
- USG FLEX - SNMP Settings and Troubleshooting
- CLI Commands [USG Series] - Overview of Helpful CLI Commands for USG Series See all 16 articles
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Security Advisory
- Zyxel security advisory for multiple buffer overflow vulnerabilities of firewalls - Unstable VPN Connection & Webinterface Login Issues
- [SA] Security Advisory - for out-of-bounds write vulnerability in SecuExtender SSL VPN Client software
- [SA] Security Advisory - Zyxel security advisory for improper privilege management vulnerability in GS1900 series switches
- [SA] Security Advisory - Zyxel security advisory for authentication bypass and command injection vulnerabilities in NAS products
- [SA] Security Advisory - command injection vulnerability in EMG2926-Q10A Ethernet CPE
- [SA] Security Advisory - command injection vulnerability in P660HN-T1A DSL CPE See all 35 articles
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HA - HA Pro
- Firewall High Availability [HA Pro] - Firmware Upgrade/Update hang or stuck with Loading
- DeviceHA - Recovery of your HA Scenario without unbind it
- Firewall High Availability [HA Pro] - Device HA Pro redeploy
- Firewall High Availability [HA Pro] - How to replace a defect device in HA Pro
- Firewall High Availability [HA Pro] - Configure Device HA Pro
- Firewall High Availability [HA Pro] - Do I need all licenses twice for an HA (high-availability) solution?
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Unboxing and Initial Setup
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VPN
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Management
- Diagnostic and error analysis for Zyxel Firewalls - Guideline / Compendium
- Looking for an End-to-end Security Solution - Zyxel have it all, be it Standalone or Cloud Managed!
- How to connect SP350E Printer to USG FLEX series
- Firewall - Increasing Throughput / Speed Boost for WAN and VPN
- USG FLEX / ATP / VPN Series: Wireless Health
- USG/ATP/USG FLEX - Deleting a Config File that includes Special Characters See all 39 articles
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NAT
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VoIP
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Firmware
- FAQ - Security Appliances and Services
- SSO Agent 2.0 - Supporting AD Windows Server 2019
- 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)
- I have an old firmware version on my USG/ATP/VPN and want to upgrade - what's the best way to do so?
- Increasing SSL VPN User Limit on ATP, USG & ZyWALL Series See all 13 articles
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UTM Services
- SSL Inspection & Security Services - Best Practice for Firewalls
- App Patrol - DNS over HTTPS blocking
- Astra Endpoint Protection [Cloud Service] - What is it and why should you use it?
- IP Reputation, URL Threat Filter & DNS Threat Filter - What is it and how is it used?
- ATP / USG FLEX - Skip UTM activation in Wizard
- Zero Trust - A compendium to a secure network See all 24 articles
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DNS
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Interfaces
- USG FLEX / ATP / VPN Series: Using Virtual Interfaces
- USG FLEX / ATP: Bridge Interface
- New usage of DHCP Table in USG FLEX/ATP/VPN Series
- How to setup a virtual interface for your WAN on a Zywall/USG
- Instructions for setting up a hardware ZyWALL USG series gateway using a static IP address for connecting to the Internet
- Using a public subnet for DMZ without SNAT in ZyWALL USG series hardware gateways See all 25 articles
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Licensing
- USG FLEX H Series [Firewall] - Licenses/Services Bundled with H Series Hardware
- SecuExtender VPN - Perpetual License End of Life [EoL] / Phase Out [Annoucement]
- Licensing - Graceperiod
- Legacy USG Series - License Phase Out [EoL] & Free IDP Signature Information
- MyZyxel shows "no compatible product" message when trying to link my Antivirus/UTM license to my USG FLEX/ATP - What can I do?
- Migration to a Flex Product + License Transfer See all 9 articles
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Firewall
- USG FLEX H Series [Firewall] - Right Console Cable and LED Indication
- USG FLEX H Series [Firewall] - Initial Setup Wizard
- [ATTENTION] USG FLEX H Series Firewall - intermediate firmware update during the initial setup
- [BEST PRACTICE] Firewall Maintenance, Config Protection and CVE Attack Mitigation
- USG FLEX H Series [Firewall] - Key advantages and comparison of USG FLEX H vs USG FLEX Series
- USG FLEX - SMS Notification (Email-to-SMS) See all 28 articles
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Routing
- Firewall - WAN Failover using Policy Routes
- How to use the "Routing Traces" function on USG/ZyWALL devices?
- Policy Routes ( USG/VPN/ATP) - Different scenario usages & configurations
- Static Routes - What they are and when to use them (USG FLEX/ATP/VPN)
- WAN Failover with Mail Alert (USG Series FW 4.10)
Nebula
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Nebula Control Center
- FAQ - Nebula
- Nebula [Organization/Site] - Change of Ownership (Best Practice)
- Nebula - Reboot an Access Point [AP] / Switch / Firewall
- Nebula [Device Registration Overview] - How to add/register or remove/delete device from Nebula
- Nebula [Base/Plus/Pro] - Main differences, Flexible subscription and Easy upgrade
- Nebula [License 2.0] - How License Works See all 31 articles
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Gateway
- SCR50AXE [Secure Cloud-managed Router] - Configure in Nebula and Getting Started
- Nebula CC - Cloud Monitoring Mode [Hybrid Cloud/Stand-alone mode]
- SCR50AXE [Secure Cloud-managed Router] - Security Functions [Threat & Traffic Management]
- Migrating from NSG to new USG FLEX - Feature and Conversion Explanation
- Nebula CC - Configure DNS Content Filter
- USG FLEX - Standalone vs. Cloud management for quick, easy and fast setup! See all 26 articles
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Switch
- Nebula CC - Configure Switch Stacking
- Switching - Troubleshooting Multicast & Broadcast Storms
- Nebula - Layer 3 [L3] Switching (Licensing & Configuring)
- Nebula [Switch] - Configure ONVIF Discovery
- Nebula [Switch] - Configure Switch with Static IP to connect to internet
- Nebula [Credentials] - What is the username/password I can use to access my Nebula device? See all 9 articles
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APs
- Nebula [AP] - Best Practice Optimizing 2.4GHz & 5GHz Wireless Network
- Nebula [AP] - Basic WiFi-Setup (SSID) on Access Points
- Nebula [Replace/Swap] - replace/swap devices in Nebula and what you should know
- Nebula AP "Easy Troubleshoot"
- Nebula [AP] - How to setup DHCP & NAT Mode in Access Point
- Nebula [Programmable SSID]- Configure a Unique SSID Name for each AP See all 9 articles
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Licensing
Switch
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Unboxing and Initial Setup
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VLAN
- VLAN Isolation [Network Switch] - Configure Layer 2 isolation except for Servers or Printers
- Switch - Configure Two ISPs in One Switch
- Switch [VLAN] - Configure inter-routing between different VLANs
- Switch [Dynamic VLAN] - Configure RADIUS Server for dynamic VLAN Assignment
- Switch - What is VLAN Trunking
- Switch - Configure Private VLAN [Overview] See all 13 articles
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PoE
- Network Switch - Schedule PoE Time Ranges for Ports (Time-controlled)
- GS1300 / GS1350 Series - Zyxel CCTV Surveillance Switch Family
- RGS200-12P / RGS100-5P: How to connect RGS to a power module
- RGS200-12P / RGS100-5P: Switch is not powering up the PoE Ports - what can it be?
- GS1300 "Surveillance" Unmanaged Switch Series - Enabling PoE Extended Range PoE
- GS1350 Series - Enabling PoE Extended Range See all 7 articles
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Management
- FAQ - Switch
- Network Switch [Connectivity] - Troubleshoot NTP issues (Nebula / Stand-alone)
- Switch - Overview of Layer 3 (L3) Routing Features & Licensing
- GS1200/XGS1210/XGS1250 - Configure Basic Setup, VLAN, LAG, Firmware Upgrade
- Including information about local users and AAA services (Radius, TACACS+) in the switch text-based configuration
- Differences between Switch models in series GS1100 and GS1900 versions See all 33 articles
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Stacking
- Firmware Upgrade for a Stacking System
- Basic setup Redundancy / HA / Stacking
- Switch Redundancy / HA / Stacking system Overview
- How to setup link aggregation between a stand-alone switch and switch in stacking mode
- Switch - Configure Stacking [High Server Availability]
- What is hardware stacking on a switch?
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Security / Filtering
- Switch - Configure DHCP Snooping
- Network Switch - Configure MAC Authentification with Active Directory
- MAC Pinning feature in ZyXEL Ethernet Switches
- Switching - Configure Bandwidth Control [Rate Limit]
- Network Switch - Configure Anti-ARP Scan [to prevent IP scanning]
- How to configure MAC filter to block unwanted traffic See all 9 articles
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Spanning Tree
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Multicast / IGMP
- Switch - AVoIP Network Configuration Guide for Dante
- Networked AV Mode - ATEN Partnership
- Network Switch - How to block Multicast in your Network
- Network Switch [IGMP] - Configure IGMP Multicast Routing [Clients in a Different LAN]
- Network Switch [IGMP] - Configure IGMP Multicast Routing [Clients in the Same LAN]
- Network Switch - Switch not sending IGMP General Query when setting IGMP Snooping for a fixed VLAN?
WLAN
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Unboxing and Initial Setup
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Controller
- FAQ - WLAN
- AP Controller - Change Access Points managed by an NXC-controller to your Firewall
- Firewalls / NXC Series - Troubleshooting Access Points [via Controller]
- Configuration of LAN 1 port for VLAN101 without tagging
- What is the meaning of 802.11 Deauthentication Reason Codes?
- RADIUS Authentication with 802.1X See all 22 articles
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Multy
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Firmware
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WLAN-Router
- Zyxel MPro Mesh [App] - Easy setup with automatic device on-boarding and configuration
- DX3301-T0 - Q&A / Troubleshooting Guide
- WiFi - Configure your Router and Standalone Access Point (AP) for Optimal Network Performance
- DX3301-T0/EX3300-T0 - Configure Router and Connect WX3100 (Using Mesh)
- LTE3301-PLUS - Troubleshooting & Port Forwarding
- NBG-418v2 - Differences between AP mode / Repeater mode / Router mode See all 25 articles
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Repeater
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APs
- Next-Generation Wireless [WI-FI7] - Unlocking the Potential of WI-FI 7 technology with Zyxel Access Points WBE660S
- Access Point [Stand-alone mode] - AP First Setup & Configure an SSID (WiFi) and Guest WIFI
- Wireless [WiFi] - Best Optimizing Practice 2.4GHz & 5GHz Network
- Access Points [NWA/WAX] - Reset Button and Device Reset
- CNP (Connect & Protect) - AP Security Service - What is it?
- WAP3205 - Setup device in Client Mode See all 36 articles
5G / LTE
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5G
- Zyxel 5G Devices [NR Series] - Advanced Downloads [Firmware and other resources]
- 5G Routers - How to use it & troubleshooting
- LTE / 5G Routers - Configure Remote Access from WAN
- LTE / 5G Routers - Explaining Carrier Grade NAT
- LTE / NR 5G Issues Zyxel vs. Provider Issues
- Magic Office - Spread Mobile signal into your office! See all 19 articles
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LTE
- [FM] Zyxel Mobile Devices - Advanced Downloads for LTE devices
- 3G / 4G (LTE) cards / dongles and VPN
- Firmware to (re)flash LTE3302-M432
- Getting started with the WAH7608
- How can I find the optimized position for my LTE device using the LTE ALLY app?
- How do I configure carrier aggregation on the WAH7706 (LTE4506)? See all 36 articles
Management and Monitoring
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Circle
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MyZyxel
- FAQ - Other Products (LTE / 5G, DSL, MyZyxel & SecuReporter)
- My Zyxel Portal [Account] - Account Information & Two Factor Authentication on MyZyxel portal
- Marketplace [licenses] - how to purchase licenses in the MyZyxel Marketplace
- Zyxel Forum - Get New Firmware Release Notifications
- Firewall [AP Management] - Manage Access Points located in Different Sites
- Zyxel security advisory for vulnerabilities of CloudCNM SecuManager See all 22 articles
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SecuReporter
xDSL / Fiber
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GPON
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DSL / VDSL
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DSLAM
- How does the IES5206 work with ADSL2+ bonding?
- VES: How to setup and activate Link Aggregation
- Pin Assignment of Telco 50 Connector Used in Different ZyXEL XDSL Switches
- The Difference between Fast and Interleave Mode [ADSL profile of IES switches]
- Automatic deactivation of ADSL ports
- VES1724: How to Setup VLAN for DSL-Ports (VDSL-Mode) See all 8 articles
Digital Home
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NAS
- Zyxel Drive App [NAS] - Zyxel Drive App Overview & Configuration for Zyxel NAS
- NAS Starter Utility EOL Announcement
- NAS 326 Port Speed Issue
- NAS - Uninterruptible Power Supply (UPS) settings
- Why is the total capacity on the NAS lower than listed from the manufacturer?
- Verified Hard Disk List for NAS Series See all 42 articles
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Camera
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Powerline
- NWD7605 [Wireless Adapter] - how to install and use Wireless Stick with Windows 11
- WRE6505v2 Extender - Troubleshooting
- WRE6505v2 - Firmware Upgrade
- How to upgrade PLA5206 firmware?
- PLA5236 - Why can it assign IP address to devices?
- ARMOR Z2 (NBG6817) with PLA5236 kit ONE Connect pack See all 8 articles
Warranty & Services
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Enhanced Services
- Zyxel Login [EU Portals] - Access ALL Zyxel Platforms with just one account!
- Team Viewer [Remote Access] - Assisting Support Team provide a remote session using Team Viewer
- Zyxel security advisory for XSS vulnerability in NBG-418N v2 home router
- Zyxel security advisory for DoS vulnerability of APs
- Zyxel security advisory for post-authentication RCE in firewalls
- Zyxel [Config Service] - End of Life / Phase Out See all 33 articles
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Warranty
- End of Life (EOL/EoL) / End of Support (EOS/EoS)
- ECCN / HS Code of Zyxel products
- I found a wrong power cable in the box of my Zyxel product
- Zyxel Support Portal [RMA] - Claiming Warranty Service for a Zyxel Product? (Using the RMA-Process)
- Zyxel Products [Warranty] - Products and Warranties
- Warranty Terms and Conditions See all 12 articles
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Internal Warranty
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Campus Academy
Demo Zone
Find the latest Knowledgebase Updates here
Popular Help Topics
- Zyxel security advisory for multiple buffer overflow vulnerabilities of firewalls - Unstable VPN Connection & Webinterface Login Issues
- Office 365 / E-Mails couldn´t work | Incident 2/14 - Fixed
- Deep Insight - Tips & Tricks for Firewall Products
- VPN Guideline - Choosing the right VPN-type for your Home-Office (+Useful Links & Tutorials)
- Diagnostic and error analysis for Zyxel Firewalls - Guideline / Compendium
- Looking for an End-to-end Security Solution - Zyxel have it all, be it Standalone or Cloud Managed!
- FAQ - Security Appliances and Services
- FAQ - Nebula
- FAQ - Switch
- FAQ - WLAN
- Zyxel 5G Devices [NR Series] - Advanced Downloads [Firmware and other resources]
- [FM] Zyxel Mobile Devices - Advanced Downloads for LTE devices
- Zyxel Management Portals Overview (MyZyxel, Circle, Nebula & Marketplace)
- FAQ - Other Products (LTE / 5G, DSL, MyZyxel & SecuReporter)
- CPE Devices - Advanced Downloads [Firmwares and other resources]
- Zyxel Login [EU Portals] - Access ALL Zyxel Platforms with just one account!