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Why is ZON functionality limited to Layer 2 environments?
```htmlWhy is ZON functionality limited to Layer 2 environments? The ZON (Zyxel One Network) utility was primarily designed for use in Layer 2 or single-domain environments. It focuses on small-scale deployments where device discovery, provisioning, and maintenance take place within the same broadcast domain. This means…
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How to Download the Zyxel ZON Utility?
```htmlHow to Download the Zyxel ZON Utility? To download the Zyxel ZON Utility, follow these simple steps: * Visit the Zon Utility Download Page. * Scroll down on the page to locate the contact information form. * Fill out your contact information in the form and click on 'Submit'. * Once submitted, Zyxel will email you…
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What to Do When PoE Stops Working After a Power Surge?
```htmlWhat to Do When PoE Stops Working After a Power Surge? It seems that the PoE (Power over Ethernet) section of your GS1900-10HP switch may not function properly after a power surge. While the switch continues to provide its regular switching functions, PoE functionality might be impaired. Here's what you can do to…
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Why should you use Zyxel GBICs to ensure stability?
```htmlBased on the reported issue, multiple ports (e.g., 1/44, 1/49, 1/50, etc.) showed abnormal CRC error records, and the GBICs in use were not Zyxel products. The environment's stability depends heavily on ensuring compatibility and optimal performance of hardware components. Using Zyxel GBICs is recommended for the…
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How to Resolve Connectivity Issues with Virtual IP in Windows NLB Multicast Mode
```htmlHow to Resolve Connectivity Issues with Virtual IP in Windows NLB Multicast Mode If you're experiencing connectivity issues with a virtual IP in a Windows NLB multicast mode setup, the following steps can help you resolve the problem: * Configure a 'Static Multicast Forwarding By MAC' entry for the NLB multicast MAC…
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How to check if the Zyxel switch sends the logs to syslog server?
Please try the following troubleshooting steps: Test Connectivity: Navigate to Maintenance > Diagnostic in the web GUI and attempt to ping the syslog server directly from the switch to confirm there is a valid path. Check Local Firewall (if you change syslog port): Confirm that the Linux system's firewall is explicitly…
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What RFC is Zyxel switch syslog using?
Q: What RFC is Zyxel switch syslog using? A: It is RFC3164.
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How Do I Find My Device's Default Password?
Try the password as 1234. This is a common factory default used on many Zyxel devices. If the password as 1234 doesn't work, look for a sticker label physically attached to your device (usually found on the bottom or back panel). The label typically contains the device's default login credentials, including the username…
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Why I can't login to my GS1900 web GUI?
Q. Why I can't login to my GS1900 web GUI? I type in the account & password and click the enter button, but nothing happens. A. This is more likely your account's password includes unsupported characters. Here is the character that GS1900 supports. Enter a password using the keyboard characters ("a – z", "A – Z", "0 – 9",…
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Why my switch has strange certificate?
Q: Why my switch has strange certificate? |-Subject : CN=GS1350 d8ece5ba42d3 A: This is the switch default certificate. You can upload your own certificate to your switch. Please navigate to MAINTENANCE > Certificates in the switch's interface. Here, you have the option to import your self-signed certificate. Choose your…
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Can I upload certificate to Zyxel switch?
The Zyxel switch, smart management series like GS1915 and higher-level switches, supports HTTPS certificates, with one HTTPS certificate pre-installed. To manage certificates, navigate to MAINTENANCE > Certificates in the switch's interface. Here, you have the option to import your self-signed certificate. Choose your…
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[Troubleshooting] PDs Not Powering Up or Unstable Connection with PoE Switch
If your powered device (e.g., an IP camera) fails to power on or frequently disconnects when connected to a Zyxel PoE switch, please follow this troubleshooting checklist: 1. Port Cross-Testing Swap the port to other PoE ports for cross testing. 2. Check Cable Material Ensure you are using CAT5e or CAT6 copper cables. 3.…
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Network Switch [Connectivity] - Troubleshoot NTP issues (Nebula / Standalone)
Zyxel switch uses NTP protocol to automatically synchronize system date and time with global servers. This makes sure users could find the logs with correct time in the event log. But once the synchronization fails or incorrect, it could cause network issues. This topic will guide you how to troubleshoot the NTP…
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Switch Firmware v5.00: Enhanced Firmware Integrity Check
To improve system security and prevent tampering, Zyxel Networks has implemented a new Enhanced Firmware Integrity Check mechanism in its latest switch firmware v5.00. This enhancement helps validate firmware authenticity using standardized cryptographic verification before installation or upgrade. Why Firmware Integrity…
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Switch Firmware v5.00: Login Privilege Enhancements
In the latest firmware release v5.00, Zyxel Networks has introduced a security-focused enhancement to how login privileges are handled for switch user accounts. The change is designed to limit unauthorized access to configuration settings. What’s New? Previously, users with Privilege Level 2 (commonly used for guest or…
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Switch Firmware v5.00: Service Access Control Logs
With the firmware update in version 5.00, Zyxel has enhanced its logging capabilities for switches by introducing the Service Access Control Log. This new feature allows administrators to track changes to remote access services, helping ensure accountability and improved network visibility. What Is Service Access Control…
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Switch Firmware v5.00: User IP Lockout
Zyxel Networks has added a key security enhancement to its switch firmware with the release of v5.00: User IP Lockout. This feature is designed to protect switch management access from unauthorized login attempts by temporarily blocking IP addresses that repeatedly fail authentication. What Is User IP Lockout? User IP…
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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…
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CX4800 Series: New Lost Password Recovery Procedure
In Nebula 18.30, Zyxel introduced the CX4800 Series. These high-performance switches are built without a physical reset button, raising the question: How can users reset the device to factory defaults if the admin password is lost? With the latest update, Zyxel has provided a new solution to address this. The Challenge: No…
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What's New in Switch Firmware v5.00: Six Minor but Powerful Enhancements
The v5.00 firmware release for Zyxel managed switches brings a set of six practical enhancements designed to improve security, usability, and troubleshooting efficiency. Though labeled as “minor,” these updates deliver meaningful improvements for administrators and service providers alike. 1. Password Input Masking in CLI…