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📢 Announcements

[2025 July Notification] SecuExtender Perpetual Version Vulnerability
Dear Valued Users, We would like to inform you that the SecuExtender VPN client with the perpetual version IPSec_3.8.204.61.32 will soon be removed from our official website due to a reported security vulnerability related to legacy Windows 7 environments. Under certain conditions, this vulnerability may allow unauthorized…
[Important Announcement] End of FTP Service Support for Home NAS Series
Dear Users, To provide a more secure and reliable service experience, we would like to inform you that FTP service support for the Home NAS series will be officially discontinued at the end of December 2025. Please take the necessary steps in advance to prepare for this change using the workaround provided below. Timeline…
Nebula Cloud Service Incident 2025-06-10 09:39 - 19:54 (UTC+0)
Dear Nebula Users, The system had some issues due to an incident. Issue Started from: 2025-06-10 09:39 (UTC+0) Resolved: 2025-06-10 19:54 (UTC+0) Issue Symptom & Risk: - 2FA email notification not received Note: This incident does not affect Nebula devices and their local network services if there is no any configuration…
[What's New] Zyxel SecuReporter 2.5.23 Software Update
Zyxel is committed to continuously updating your devices and services for important maintenance. This latest release enhances many functions of security appliances, including smarter AI support and stronger reporting stability. ✔️ Smarter and Faster: Discover What’s New withSecuPilot We’ve been working hard to make…
[2025 June Spotlight] “No IT? No Problem.” – How 20 Stores Got Secured with Nebula
🚩A familiar challenge for growing businesses If your company is expanding into multiple branches—but your IT team isn’t—then you’re likely facing the same growing pains many small and medium-sized businesses (SMBs) do. Whether you're running retail stores, service hubs, or regional offices, managing security and…
Zywall USG FLEX Series & ATP Series - V5.40Patch 0 Firmware Release
Zywall USG FLEX Series & ATP Series Release Note May 2025 Firmware Version on all models (Click the hyperlink to find the firmware file directly) FLEX SeriesDownload linkATP SeriesDownload…
[Release Note] Nebula Security Gateway Series - Patch 7 firmware has been released!
Zyxel Nebula Security Gateway Series Release Note May, 2025 Firmware Version on all models Zyxel NSG50 - V1.33(ABHP.7) Zyxel NSG100 - V1.33(ABEA.7) Zyxel NSG200 - V1.33(ABLD.7) Zyxel NSG300 - V1.33(ABOS.7) ENCHANCEMENT Improved device connection stability with Nebula.
Now Available: Single Sign-On with Microsoft Entra ID for Zyxel Account
Simplify Your Access, Enhance Your Security We're excited to announce a powerful new feature for Zyxel Account users! Now you can streamline your login experience with Microsoft Entra ID integration, enabling Single Sign-On (SSO) across all Zyxel platforms. This seamless authentication method eliminates the need for…
Switch Firmware v5.00: Password Complexity
With the latest firmware update, Zyxel Networks now offers Password Complexity Enforcement on supported switch models. This feature, long available in security appliances, is now part of the switch lineup—designed to improve account security and meet stricter compliance requirements in enterprise and regulated…
[2025 May Spotlight] Smarter and Faster: Discover What’s New with SecuPilot!
If you’ve been using Zyxel SecuReporter, you probably already know SecuPilot — our AI-powered helper that enhances SecuReporter to make network security management smarter and easier for SMBs and managed service providers (MSPs). 👉 Just to quickly recap: SecuPilot lets you ask security questions in plain language,…

Latest Discussions

CVE-2025-6265 patches/firmware availability
Hey, thanks for the heads up twice! about the vulnerability and the patch availability… Which at time of writing have no links into advisory bullettin, not available on the download page… and no ETA date/time. Am I missing something?
fail over wan
Hmm, i discover now fail over wan isn't available for flex 50h? When will it available (in nebula) Yours Dennis
Problème interface Gui
Je n'arrive pas à accéder à l'interface gui du routeur scr50axe en wifi ni par le port lan 1.2.3.4 Merci d'avance
LTE7460-M608 modem
Hello! I'm going to buy the LTE7460-M608 modem. And I have some questions: 1. Need I to buy some router too? 2. If I need in, can I use the ZYXEL KEENETIC 5BB4DC router with LTE7460-M608 modem? Or I shouid buy another router? May be NBG6615?
FLEX 100H firewall zone bug
We ran into some odd behavior that appears to be a bug on a FLEX 100H running latest 1.32 firmware. We have a firewall rule which blocks NetBIOS packets from ANY-to-WAN, and another rule which allows all packets from LAN-to-IPSec. For some reason, the ANY-to-WAN rule is blocking packets that are supposed to be sent over…
Replace ATP200 with Flex200H
If I replace my Nebula ATP200 firewall with a Flex 200H, will it copy the settings over, or will I need to start from scratch?
USG FLEX PPPoE Connect
Hello! I encountered a problem with the PPPoE connection on the USG FLEX 700H router I chose port 3 as a test port and configured the VLAN 20 configuration + username and password on it. But the equipment did not receive any DHCP address Can you tell me how to analyze the problem and find a solution for the connection?
ZLD 5.x firmware development status
According to this page https://support.zyxel.eu/hc/en-us/articles/360005438274-Weekly-Firmware-Support-Version-Lab-Version latest pubblication of Lab Firmware for ZLD 5.x is dated november 2024, 1 month after 5.39P1, roughly 20 weeks ago. Is there a new way for access Lab Firmwares? Is Lab Firmware release suspended? Is…
WLAN Settings Access Issue
I’m trying to access WLAN Settings on my USG FLEX 500H device, but I get a blank screen with a loading symbol. How can I access WLAN management?
Zyxel USG 100
Hello, How to solve issue Cli Number :0 Error number: -2 Error Message: Not connected to ZySH Daemon Best regards

Latest solutions

CVE-2025-6265 patches/firmware availability
Hey, thanks for the heads up twice! about the vulnerability and the patch availability… Which at time of writing have no links into advisory bullettin, not available on the download page… and no ETA date/time. Am I missing something?
fail over wan
Hmm, i discover now fail over wan isn't available for flex 50h? When will it available (in nebula) Yours Dennis
Problème interface Gui
Je n'arrive pas à accéder à l'interface gui du routeur scr50axe en wifi ni par le port lan 1.2.3.4 Merci d'avance
LTE7460-M608 modem
Hello! I'm going to buy the LTE7460-M608 modem. And I have some questions: 1. Need I to buy some router too? 2. If I need in, can I use the ZYXEL KEENETIC 5BB4DC router with LTE7460-M608 modem? Or I shouid buy another router? May be NBG6615?
FLEX 100H firewall zone bug
We ran into some odd behavior that appears to be a bug on a FLEX 100H running latest 1.32 firmware. We have a firewall rule which blocks NetBIOS packets from ANY-to-WAN, and another rule which allows all packets from LAN-to-IPSec. For some reason, the ANY-to-WAN rule is blocking packets that are supposed to be sent over…
Replace ATP200 with Flex200H
If I replace my Nebula ATP200 firewall with a Flex 200H, will it copy the settings over, or will I need to start from scratch?
USG FLEX PPPoE Connect
Hello! I encountered a problem with the PPPoE connection on the USG FLEX 700H router I chose port 3 as a test port and configured the VLAN 20 configuration + username and password on it. But the equipment did not receive any DHCP address Can you tell me how to analyze the problem and find a solution for the connection?
ZLD 5.x firmware development status
According to this page https://support.zyxel.eu/hc/en-us/articles/360005438274-Weekly-Firmware-Support-Version-Lab-Version latest pubblication of Lab Firmware for ZLD 5.x is dated november 2024, 1 month after 5.39P1, roughly 20 weeks ago. Is there a new way for access Lab Firmwares? Is Lab Firmware release suspended? Is…
Zyxel USG 100
Hello, How to solve issue Cli Number :0 Error number: -2 Error Message: Not connected to ZySH Daemon Best regards
How to enable flow control via command line in Nebula mode? for all ports
Hello! Is there a command for enabling "flow control" on all ports, or do I have to configure each single port via CLI? Thx.

Unanswered Discussions

WLAN Settings Access Issue
I’m trying to access WLAN Settings on my USG FLEX 500H device, but I get a blank screen with a loading symbol. How can I access WLAN management?
ho perso la password
S/N S240Z19005219 I can't find the password to configure the modem. Can you help me? daniele79@libero .it
Very bad connection on NR5103E
Hello, i live in Sweden and moved to a new place like 5km from my old house where my NR5103E worked very well i had low ping while gaming around 30 and ok internet speeds like 100mpbs+ but now the internet speed is very slow like 10-20mbps but sometimes it just randomly goes up to 100mbps+ and falls again i tried playing…
Need latest FW for SBG3600-N000
The current firmware version is V1.00(AAKO.9) WWAN package version 1.15 LTE firmware version: ALT3100_05_00_02_81_MS Thanks in advance!
Band support for external antennas
I'm searching for new lte router for my summer house. One thing that is a must is support for dual external antennas. My current modem doesn't work good thanks to bad band support on one of its external ant port. Can someone tell me how to find bands supported for both ports for example for lte5398-m904 ? Thanks in…
DX3301-T0
HI! I'm tryng to register my product, but it's seems it does'nt exist. I received the DX33301-T0 from my provvider (WINDTRE)… May be the product has been registered by WINDTRE? Thank you for the answers
Microchip WLR089 ASF LoRaWAN library initialization
I'm trying to implement to minimal LoRaWAN setup for my WLR089 xplained pro. I've set up a simple project using the ASF wizard in Microchip studio 7. I have all the necessary libraries included for my current main program. I've used the lorawan.h library found in the ASF Wizard listings for the WLR089. My program compiles,…
LTE4506-M606 lastest firmware?
mine is " V1.00(ABSJ.0)C0 " any new one?
NR7302 ethernet connection interupts under heavy VPN loads
Good morning. I’m having some issues with my NR7302 Outdoor router, where when some systems on the network are using a VPN and doing large file transfers the ethernet interface gets marked as down. In all other cases, such as under other heavy loads this is not the case. The modem is connected to a router running OPNsense,…
Original Firmware for NR5103E
Dear Community, I own a Zyxel NR5103E router and was searching for a firmware update. Unfortunately, I accidentally installed firmware intended for the NR5103 model instead. Now, the router's power light remains red, and the Wi-Fi is not working. Has anyone experienced a similar issue, or does anyone know how to recover…

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Stories

Let's learn how Zyxel users are building successful infrastructure and share your own success stories using Zyxel products!

Enhancing Operational Efficiency and WiFi Experience in Korean Dental Hospital
Dental clinic ——————————————————————————————————————————————————————— Overview The dental hospital relies on oral scanners for treatment and checkups. Initially, the hospital installed a single router positioned in the lobby’s reception area to facilitate wireless connectivity. However, this setup proved insufficient to…
Strengthening Surveillance Infrastructure at a District Court in West Bengal
District Court ——————————————————————————————————————————————————————— Overview Zyxel Networks, in collaboration with its partner Active Networks, undertook a significant project to upgrade the surveillance infrastructure at a district court in West Bengal. The goal was to implement a comprehensive CCTV system across…
Enhancing Surveillance Infrastructure at a Leading International Airport in Gujarat
International Airport in Gujarat ——————————————————————————————————————————————————————— Overview Situated in Gujarat, a significant airport undertook a major upgrade to its surveillance infrastructure to meet increasing security demands. The airport, experiencing growth in passenger and cargo traffic, recognized the…
Shifting into High Gear with Innovative Service Experiences Powered by Nebula
Schultes car dealership ——————————————————————————————————————————————————————— Overview In crafting the new showrooms for SEAT and CUPRA, the goal was to deliver a cutting-edge, visually stunning experience. By integrating advanced multimedia terminals and virtual car displays, the need for a robust, fast wireless network…
Streamlining Learning with Premium WiFi at the Corporate Training Center
Corporate Training Center ——————————————————————————————————————————————————————— Overview To meet the customer's demand for uninterrupted and secure wireless connections throughout the facility, Zyxel Networks collaborated with LG U+ to deliver a premium WiFi solution. The network was meticulously designed to ensure…
Premium WiFi Deployment for Seamless Network in Clothing Warehouse
Clothing Logistics Warehouse in Yeoju ——————————————————————————————————————————————————————— Overview The warehouse is an open-structured building where employees use handheld PDAs to manage inventory and coordinate stock flow. The operation depends heavily on wireless connectivity, and a stable, high-capacity network…
Enhancing Security & Surveillance Reliability in Government Hospitals with Zyxel Switches
Hospitals In West Bengal ——————————————————————————————————————————————————————— Overview Government hospitals in West Bengal recognized the urgent need to bolster their security infrastructure by implementing a comprehensive CCTV surveillance system. To bring this vision to life, they required a reliable, high-performance…