What to do if the LNK/ACT LED does not light up on my ZyXEL Communications Network Router?
If the LNK/ACT LED on your ZyXEL Communications Network Router isn't lighting up or flashing when a device is connected, ensure the connected device is powered on and properly connected to the switch. Also, confirm that the Ethernet cards on the connected devices are functioning correctly and that the network cable is no longer than 100 meters.
How to troubleshoot ZyXEL Communications Network Router when no LEDs are on?
If none of the LEDs are lit on your ZyXEL Communications Network Router when the power is connected, verify that the included power adapter or cable is correctly connected to both the switch's power receptacle and a working power source. If the problem continues, it may indicate a hardware issue.
General| Brand | ZyXEL Communications |
|---|---|
| Model | MES-3728 |
| Category | Network Router |
| Language | English |
Shows how VLANs partition a physical network into logical networks.
Lists methods for managing the switch: Web Configurator, CLI, FTP, SNMP, Cluster Management.
Step-by-step guide for installing the switch on a desktop surface.
Instructions for mounting the switch onto a standard EIA rack.
Details the MGMT port for local management via Ethernet and its default IP address.
Details the process of accessing the web configurator using default credentials.
Describes the initial screen displayed upon accessing the web configurator.
Recommends changing the default administrator password for security.
Provides steps to reset the switch to factory defaults.
Explains how to create VLANs and configure ports for VLAN membership.
Describes how to use PVID to tag untagged frames for VLAN forwarding.
Details how to configure a management IP address for VLANs.
Explains how to view port statistics by clicking the Status screen.
Details individual port statistics and performance data.
Shows how to display switch information like firmware, temperature, and fan speeds.
Explains configuration of system name, time, and location settings.
Details configuration of global switch parameters like VLAN type and MAC learning.
Covers configuration of Switch IP address, default gateway, and management VLAN ID.
Describes how to configure individual switch port settings.
Explains VLAN tags, their format, and how they identify VLAN membership.
Explains how to use static VLANs to define frame handling based on VLAN tags.
Provides steps to configure static VLAN parameters for the switch.
Details configuring static VLAN (802.1Q) settings on a per-port basis.
Explains grouping traffic into logical VLANs based on source IP subnet.
Details how to configure subnet-based VLANs for un-tagged packets.
Explains grouping traffic into logical VLANs based on specified protocols.
Provides steps to configure protocol-based VLANs for un-tagged packets.
Explains port-based VLANs where forwarding decisions are based on destination MAC.
Details setting up static MAC addresses for ports to control access.
Explains how to set up filtering rules based on MAC addresses and VLAN IDs.
Explains STP/RSTP's role in detecting and breaking network loops.
Shows how to view STP status based on the chosen standard.
Details activating STP modes like RSTP, MRSTP, or MSTP.
Guides on configuring RSTP settings including bridge priority and port cost.
Explains how to view RSTP status, including Hello Time and Max Age.
Provides steps for configuring MRSTP, including bridge priority and port assignments.
Details how to view MRSTP status and related parameters.
Guides on configuring MSTP, including region name and instance settings.
Explains how to view MSTP status and details of common and internal spanning trees.
Defines bandwidth control and its purpose for traffic flows.
Guides on configuring bandwidth limits for incoming and outgoing traffic.
Details configuring broadcast storm control to limit broadcast, multicast, and DLF packets.
Explains how to copy traffic to a monitor port for analysis.
Introduces logically aggregating physical links into one logical link.
Describes adhering to IEEE 802.3ad standard for LACP port trunking.
Shows how to view the status of configured link aggregation groups.
Details the screen for configuring static link aggregation.
Explains configuration for dynamic link aggregation using LACP.
Provides an example of creating a static port trunk group.
Describes validating access to ports using IEEE 802.1x and MAC authentication.
Illustrates the client validation process through a RADIUS server.
Explains MAC authentication using source MAC and configured password.
Details activating port authentication methods and configuring RADIUS settings.
Guides on activating IEEE 802.1x security on the switch and ports.
Explains how to activate MAC authentication on the switch and ports.
Explains port security allowing only authorized MAC addresses on a port.
Provides instructions on how to set up port security.
Introduces Quality of Service (QoS) and packet classification for traffic prioritization.
Details defining classifiers to group traffic into data flows.
Explains how to reset the switch to its factory default settings.
Guides on uploading and applying new firmware to the switch.
Details configuring administrator and non-administrator login accounts.
Troubleshooting steps for power issues and LED behavior.
Troubleshooting steps for forgotten IP addresses, usernames, or login screen access.
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