1. Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your DrayTek Vigor 2135AX WiFi 6 Dual Band Gigabit Ethernet FTTP Router. Please read this manual carefully before using the device to ensure proper functionality and safety.

Figure 1: Front view of the DrayTek Vigor 2135AX Router. This image shows the compact white router with two upright antennas and LED indicators on the front panel.
2. Package Contents
Ensure all items are present in the package:
- DrayTek Vigor 2135AX Router
- AC Adaptor
- Network Cable
- Quick Start Guide
3. Hardware Overview
Familiarize yourself with the ports and indicators on your Vigor 2135AX router.

Figure 2: Rear and side view of the DrayTek Vigor 2135AX Router with labeled components. This image highlights the various ports and buttons, including LAN ports, WAN port, USB ports, power input, and reset button.
- 1. Wireless Antenna: For Wi-Fi signal transmission and reception.
- 2. WLAN/WPS Button: Toggles Wi-Fi on/off or initiates WPS pairing.
- 3. Reset Button: Resets the router to factory default settings (requires a pin press).
- 4. 2x USB 2.0 Ports: For connecting 4G modems, USB storage, USB thermometers, or USB printers.
- 5. LAN Port: 4x GbE RJ-45: Connects to local network devices (computers, switches).
- 6. WAN Port: 1x GbE RJ-45: Connects to your Internet service provider's modem or FTTP connection.
- 7. LED Indicator: Displays status of power, internet, Wi-Fi, and LAN activity.
- 8. Power On/Off Switch: Controls the power supply to the router.
- 9. Power Input: Connects to the provided AC adaptor.
4. Setup Guide
4.1 Initial Connection
- Connect the WAN Port: Connect one end of the provided network cable to the blue WAN port (6) on the router and the other end to your FTTP (Fiber to the Premises) modem or ONT (Optical Network Terminal).
- Connect LAN Devices: Connect your computer or other network devices to any of the yellow LAN ports (5) using Ethernet cables.
- Power On: Connect the AC adaptor to the Power Input (9) on the router and plug it into a power outlet. Turn on the router using the Power On/Off Switch (8).
- Verify LEDs: Wait for the LED indicators (7) to stabilize. The Power LED should be solid green, and the WAN LED should indicate an active connection.
4.2 Accessing the Web Interface
- Ensure your computer is connected to the router via Ethernet or Wi-Fi.
- Open a web browser (e.g., Chrome, Firefox, Edge).
- In the address bar, type
http://192.168.1.1(default IP address) and press Enter. - Enter the default username and password (usually "admin" for both, refer to the Quick Start Guide for specifics).
- Follow the on-screen wizard for initial configuration, including setting up your Internet connection type (e.g., PPPoE, DHCP) and Wi-Fi network name (SSID) and password.
5. Operating Instructions
5.1 Wi-Fi Configuration
The Vigor 2135AX supports Wi-Fi 6 (802.11ax) for high-speed wireless connectivity.
- Changing SSID and Password: Navigate to Wireless LAN > General Setup in the web interface to modify your Wi-Fi network name (SSID) and security key (password).
- WPS Function: Press the WLAN/WPS button (2) on the router for a few seconds to enable Wi-Fi Protected Setup (WPS) for easy connection of WPS-compatible devices.
- Dual Band Operation: The router operates on both 2.4GHz and 5GHz bands. You can configure separate SSIDs for each band or use a single SSID with band steering.
5.2 Advanced Features
The Vigor 2135AX offers a range of advanced networking features:
- Load Balancing & Failover: Configure multiple WAN connections for increased bandwidth or redundancy.
- VLANs: Create up to 4 LAN subnets with VLAN tagging (Port-based / 802.1q) for network segmentation and security.
- Firewall & Content Filtering: Manage Internet access, block specific applications, and filter web content based on categories.
- VPN: Establish secure remote access with up to 2 Remote Dial-In User tunnels, Site-to-Site VPNs, or connect to VPN services.
- USB Applications: Utilize the USB ports (4) for connecting 4G/5G modems for broadband failover, USB storage for network-attached storage (NAS) functionality, or USB printers for network printing.
6. Maintenance
- Firmware Updates: Regularly check the DrayTek website for the latest firmware updates to ensure optimal performance, security, and access to new features. Firmware can be updated via the web interface.
- Backup Configuration: It is recommended to back up your router's configuration settings before performing firmware updates or major changes. This can be done through the web interface.
- Cleaning: Keep the router in a clean, dust-free environment. Use a soft, dry cloth to clean the exterior. Do not use liquid cleaners.
- Ventilation: Ensure the router's ventilation holes are not obstructed to prevent overheating.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Internet Connection | WAN cable disconnected, ISP issue, incorrect WAN settings. | Check WAN cable connection. Verify ISP status. Review WAN settings in the web interface. Restart router and modem. |
| Slow Wi-Fi Speed | Interference, distance from router, outdated firmware, channel congestion. | Move closer to the router. Change Wi-Fi channel in settings. Update firmware. Consider reducing interference from other devices. |
| Cannot Access Web Interface | Incorrect IP address, network configuration issue, router not powered on. | Ensure router is powered on. Verify computer's IP settings (should be DHCP). Try http://192.168.1.1. Reset router if necessary (this will erase settings). |
| Forgotten Admin Password | Password lost. | Perform a factory reset using the Reset Button (3). Warning: This will erase all custom configurations. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | DrayTek Vigor 2135AX Router (V2135AX-K) |
| Connectivity Technology | Ethernet, Wi-Fi |
| Wireless Standard | 802.11ax (Wi-Fi 6) |
| Frequency Band Class | Dual-Band (2.4 GHz, 5 GHz) |
| LAN Ports | 4 x Gigabit Ethernet (GbE RJ-45) |
| WAN Ports | 1 x Gigabit Ethernet (GbE RJ-45) |
| USB Ports | 2 x USB 2.0 |
| Firewall Throughput | Up to 940Mbps (with hardware acceleration) |
| VPN Tunnels | Up to 2 Remote Dial-In User tunnels |
| Dimensions | 10.51 x 9.29 x 3.98 inches |
| Item Weight | 2.9 pounds |
| Included Components | AC Adaptor, Network Cable, Quick Start Guide, Router |
9. Warranty and Support
9.1 Warranty Information
DrayTek products typically come with a limited warranty. Please refer to the warranty card included in your product packaging or visit the official DrayTek website for detailed warranty terms and conditions specific to your region.
9.2 Technical Support
For technical assistance, firmware downloads, or further documentation, please visit the official DrayTek support website. You may also contact DrayTek customer support directly via their provided contact channels.
DrayTek Official Website: www.draytek.com
DrayTek USA Store: DrayTek USA Amazon Store





