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[Release Note] Nebula Control Center - 19.00 software Release!
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[Release Note] Nebula Control Center - 19.00 software Release!
Zyxel Nebula Control Center Release Note Common NCC (Organization,Site-wide,etc.): * Enhance the UI/UX for MSP Cross-Org synchronization to make it clearer and easier to use. (Nebula MSP Pack license is required) * Improve banner UI/UX to let eligible org enable NCC Pro easily. Wireless LAN (WLAN): * Added WiFi Alert…
Nebula CC Upgrade Notification - 2025-04-14 00:20 ~ 2025-04-14 01:00
Dear Nebula Users, The system will temporarily unavailable due to the upgrading. Reason: Nebula Control Center will be upgrading to release 19.00. Started from: 2025-04-14 00:20 (UTC+0) Completed: 2025-04-14 01:00 (UTC+0) Affected scope & Risk: All users will be force logout from Nebula Control Center and inaccessible…
Nebula Cloud Service Incident 2025-03-29 23:57 ~ 2025-03-30 01:55 (UTC+0)
Dear Nebula Users, The system had some issues due to an incident. Issue Started from: 2025-03-29 23:57 (UTC+0) Resolved: 2025-03-30 01:55 (UTC +0) Issue Symptom & Risk: - some Nebula page get error start Note: This incident does not affect Nebula devices and their local network services if there is no any configuration…
Switch GS1900 Series - V2.90 Patch 1 Firmware Release
Zyxel Switch GS1900 Series Release Note March 2025 Firmware Version on all models (Click Hyperlink to download the firmware directly) Zyxel GS1900-8 - V2.90(AAHH.1)C0 Zyxel GS1900-8HP - V2.90(AAHI.1)C0 Zyxel GS1900-8HP(Rev. B1) - V2.90(AAHI.1)C0 Zyxel GS1900-10HP - V2.90(AAZI.1)C0 Zyxel GS1900-16 - V2.90(AAHJ.1)C0 Zyxel…
[2025 March] SecuReporter Maintenance Announcement
Dear Valued Customer, As part of our commitment to providing you with better and more efficient services, we will be carrying out a system migration process on Mar 15, 2025, from 9:00 AM to 12:00 PM (UTC+8). During this period, SecuReporter portal services and some related functions will be suspended. However, SecuReporter…
[2025 March] SecuReporter Maintenance Announcement
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[Release Note] Zyxel Access Point - V7.10(ACGG.2)C0 firmware has been released
Access Points Firmware Release Note March 2025 Overview This document provides firmware release information on Zyxel Access Points platforms, introduce new Access Points, new features and enhancements, bug fix, known issues and workarounds information for Release V7.10 Patch 2 C0. Supported Platforms (Click Hyperlink to…
NebulaFlex Switch GS1350 Series - V4.90 Patch 2 Firmware Release
Zyxel Switch GS1350 Series Release Note February 2025 Firmware Version on all models (Click Hyperlink to download the firmware directly) Zyxel GS1350-6HP - V4.90(ABPI.2)C0 Zyxel GS1350-12HP - V4.90(ABPJ.2)C0 Zyxel GS1350-18HP - V4.90(ABPK.2)C0 Zyxel GS1350-26HP - V4.90(ABPL.2)C0 New Feature and Enhancements 1. [Nebula]…
[2025 March Spotlight] USG LITE 60AX Shines Bright with Media Acclaim and Awards 🌟
The Zyxel USG LITE 60AX has quickly risen to prominence, earning enthusiastic praise from tech media and prestigious industry awards 🏆. Designed for small businesses and teleworkers, this WiFi 6 security router has struck a chord with reviewers and experts alike. We deeply thank the following media and organizations for…

Latest Discussions

VLANs - Zyxel --- Cisco
XMG1915 — G8- - - - - - - - - - -g0/4— Cisco 3560CX I am more of a Cisco guy and still learning the Zyxel way of doing stuff. So please bear it in mind ;-) On Cisco: G0/4 switchport mode trunk On Zyxel: vlan 1 normal "" fixed 1-18 forbidden "" untagged 1-7,11-18 ip address 10.10.10.247 255.255.255.0 ip address…
Zyxel GS1920 + USG-20 problem
Hi all, After ~10 hours of copilot-assisted, unsuccesful home network configuration effort it is time to call for help. My setup and what I have done so far: Network setup ISP provided internet device Firewall: Zyxell USG20-VPN Switch: Zyxell GS1920-24HPv2 APs: 4 x UniFi U6+ PoE ISP connected to firewall WAN port. From…
USG Flex100H factory reset doesn't reset password
I have a 100H that I cannot log into via console cable. I have tried debug mode reset and the reset button methods. When I try and login with admin / 1234 via the console cable it returns "login: pam_setcred failed: Permission denied (6)" I'm at a loss of what I can do next to revive this device.
Flex 500 H CLI command list
Since BGP, RIP, OSPF, and all routing discovery protocols are not included in the GUI as they should be, I tried to locate the settings in the CLI console. Great! the command structure is all different too and there is no CLI console command list to help find functions and features. So not only did you release this model…
Need help installing 4.70 firmware to NSA320
Hi all, Decided to go back to using my old NSA320 for several reasons. Last time it was put to use was around 2013. Today, I found out the firmware is too old (v4.01) and it's EOL already. Managed to download both v4.60 and v4.70. However, the NAS don't seem to initiate the actual firmware upgrade after uploading the .BIN…
Access Point Event Log Reason Code and Descriptions
You may often encounter reason codes (#) in event logs without fully understanding their meaning. Below are some common reason codes related to access point event logs: Reason# Description 0 Reserved 1 Unspecific Reason 2 Previous authentication no longer valid 3 Deauthenticated because sending STA is leaving (or has left)…
Is it possible to import static DHCP into EX3600-T0
Is it possible to import static DHCP into EX3600-T0? Getting a new ISP and want to try their router, so how can I transfer static IPs to the Zyxel? best regards, G
VPN issue (Flex 700H / NSG50) after Nebula update
I don't know if it is related to Nebula update 18.30 (build 250325.0130) but i have a VPN site-to-site connection between a USG Flex 700H and a NSG50 that is no longer working. Flex 700H says connected. NSG50 has a status of disconnected. I can't ping remote sites.
Reboot USG Flex GUI Access Only
Hi Guys I have a Flex 200 that has lost communication with Nebula NCC, the appliance is up and running ok though. It is not possible for anyone to gain access to pull the plug for a power cycle. I can VPN on to the network ok and log in to GUI of the Flex but I do not see a reboot option anywhere in the options. Any ideas…
When are the H Series going to be Full Nebula?
I grabbed a 200HP to test and I am really disappointed to see you have to use the remote configurator tool. I won't be willing to push these in to production until they are fully Nebula.

Latest solutions

VLANs - Zyxel --- Cisco
XMG1915 — G8- - - - - - - - - - -g0/4— Cisco 3560CX I am more of a Cisco guy and still learning the Zyxel way of doing stuff. So please bear it in mind ;-) On Cisco: G0/4 switchport mode trunk On Zyxel: vlan 1 normal "" fixed 1-18 forbidden "" untagged 1-7,11-18 ip address 10.10.10.247 255.255.255.0 ip address…
Zyxel GS1920 + USG-20 problem
Hi all, After ~10 hours of copilot-assisted, unsuccesful home network configuration effort it is time to call for help. My setup and what I have done so far: Network setup ISP provided internet device Firewall: Zyxell USG20-VPN Switch: Zyxell GS1920-24HPv2 APs: 4 x UniFi U6+ PoE ISP connected to firewall WAN port. From…
Flex 500 H CLI command list
Since BGP, RIP, OSPF, and all routing discovery protocols are not included in the GUI as they should be, I tried to locate the settings in the CLI console. Great! the command structure is all different too and there is no CLI console command list to help find functions and features. So not only did you release this model…
Is it possible to import static DHCP into EX3600-T0
Is it possible to import static DHCP into EX3600-T0? Getting a new ISP and want to try their router, so how can I transfer static IPs to the Zyxel? best regards, G
VPN issue (Flex 700H / NSG50) after Nebula update
I don't know if it is related to Nebula update 18.30 (build 250325.0130) but i have a VPN site-to-site connection between a USG Flex 700H and a NSG50 that is no longer working. Flex 700H says connected. NSG50 has a status of disconnected. I can't ping remote sites.
Reboot USG Flex GUI Access Only
Hi Guys I have a Flex 200 that has lost communication with Nebula NCC, the appliance is up and running ok though. It is not possible for anyone to gain access to pull the plug for a power cycle. I can VPN on to the network ok and log in to GUI of the Flex but I do not see a reboot option anywhere in the options. Any ideas…
Security router - missing geo IP on Threat report
Hello everyone, when I go on that page: I cannot see georeference about "Ransomware" also if it has a Domain/IP info: Is there a specific reason why the map is not complete like this one: that is coming from SecuReporter?
How to enable port forwarding on ZYXEL DX3301-T1?
Hello everyone! I have this issue, how can I set a port forwarding rule? I tried to search on the internet for my correspective model but I can only find the "DX3301-T0" one… How is it possible? On my zyxel there is no port forwarding option… I only have firewall's section that has ACL and Protocols rules only…. Can anyone…
Router VMG8623-T50B remote access
My ISP give me access point/router Zyxel VMG8623-T50B, Firmware Version V5.50(ACDV.0)b4_E0_20240315. As I wish to secure it as much as possible, I run to a serious problem: The APs HTTP/HTTPS access is possible from my LAN (needed to manage it) and ALSO from internet site (WAN). So anybody can access it by brute force…
How to configure DX3301-T0 to send daily logs?
I can't seem to find where to set up scheduling an email containing the log files on a daily basis. This was a facility in my old Zyxel (AMG1302-T10B) and it was useful for keeping an eye on what was going on. Can someone point me at the equivalent part of the config screens for the DX3301 please? I've set up the relevant…

Unanswered Discussions

USG Flex100H factory reset doesn't reset password
I have a 100H that I cannot log into via console cable. I have tried debug mode reset and the reset button methods. When I try and login with admin / 1234 via the console cable it returns "login: pam_setcred failed: Permission denied (6)" I'm at a loss of what I can do next to revive this device.
Two questions about dx3301-t0
Current firmware on the device: DX3301-T0_5.50(ABVY.5.6)C0 The first question is about reverting from generic firmware to ISP. I used ssh to successfully flash a generic firmware instead of ISP firmware by disabling modelcheck and fwidcheck. The router now boots from partition 2 which contains the new firmware. If this is…
Zyxel XMG3927 B50A last firmware
Hello dear friend, I bought a xmg3927 b50a model modem from my friend. But I couldn't find the latest software anywhere. Where can I download the latest software file and how can I install it? I would be glad if you support me. Thank you.
Solid red Internet light
ZYXEL EX3301-T0 Hello, has anyone else had any issues with the EX3301-t0 red internet light coming on and staying that way?. Signed up with Voneus months ago, everything seemed fine at first, then one day the internet light turned red, it remained that way for 2 days solid before returning to green on its own, Friday gone…
Nebula/on-prem: bonjour reflection (e.g. AirPrint, Chromecasts, Spotify)
Hello everyone, I am looking for some improvements about the need to share printers across differents VLANS. That is needed when you have multifunctions to be shared across different subnets and when you want to be green-friendly (buying only one printer) but also be careful about IT security with WiFi guests. I was on…
Auto startup Zyxel WAH7601mobile router
Hello, My Zyxel WAH7601 mobile router shuts down intermittently for an unknown reason. Is there a way to configure the router to automatically start up when connected to a power socket?
Does ZYXEL EX3301-T0 support WPA-PSK for older WiFi printers?
My WiFi printer does not support WPA2-PSK. Does the EX3301-T0 support WPA-PSK? Thanks!
NR7302 - without password sticker - Zyxel really this bad?
@Zyxel_AL Dear Zyxel, a lot of users bought the NR7302 second hand and on some units the password sticker is entirely missing. Zyxel denied any support so far for such units because they are "carrier provided". You don't have to provide hardware guarantee. But do you really want to be seen as a company who does not help…
UDP port 4500 sometime get blocked when allowed over bridge V2
So still happing this problem turns out was not the LAG bridge setup as I now have two port bridge on VPN300 but the only way to fix is to clear the NATT session in this case from 82.132.220.254 which UDP 4500 comes in on one interface of the bridge and does not send out the other interface until session is cleared then it…
Activate snmp on NR7302?
Hi, is there a way to activate snmp on NR7302? A simple snmpwalk didn't show any response, and there are no settings for this in the webUI. Zysh shows a setting, but it's too buggy to work with. Thanks in advance.

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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…
Redefining the future of sports and driving innovations with Nebula
Kosmos Global Holding S.L. ——————————————————————————————————————————————————————— Overview With a mission to drive innovation and shape the future of sports, media, and entertainment, Kosmos Global Holding opened a new office in Barcelona and needed to upgrade their technology and network infrastructure for upcoming…
Creating Smart Campus to Optimize Learning and Administration
National Taiwan Normal University ——————————————————————————————————————————————————————— Overview Network connectivity is a fundamental need in modern academic and daily life. Faculty and students across NTNU require stable and high-speed internet for online learning, completing assignments, conducting research, and…
Enhancing Shared Office Operations, Efficiency, and Security for Businesses
Doplin Business Center ——————————————————————————————————————————————————————— Overview Doplin Business Center operates multiple locations in Taipei, providing businesses with a stable and efficient network environment to support daily operations. With Zyxel Networks' advanced networking technology, the business center…