XUNYOU-LINK EC21 4G Modem WiFi6 Router User Manual

1. Introduction

The XUNYOU-LINK EC21 4G Modem WiFi6 Router is designed to provide high-speed wireless internet access and comprehensive routing capabilities. It converts 4G LTE signals into Wi-Fi, allowing both wireless and wired devices to connect simultaneously. This device is suitable for various applications including home, office, outdoor, and remote area use.

Product Features:

• 4G to WiFi and 4G to LAN conversion
• Four 100Mbps LAN ports for wired access
• DL 300Mbps, UL 150Mbps speeds
• Supports IPV4/IPV6
• WiFi 6, 2.4G speed: 300Mbps
• Connects up to 32 devices simultaneously
• SSID broadcast function, supporting hidden Wi-Fi
• Port filtering, port mapping, watchdog functions
• Supports locking frequency bands
• Supports FOTA remote upgrade function
• Supports TCP/UDP/PPP/HTTP/NITZ/NDIS/NTP/HTTPS/PING/PAP/CHAP protocols

2. Package Contents

Please check the package contents upon unboxing to ensure all items are present and undamaged:

• 1 x Mobile WiFi Router (EC21)
• 1 x Power Adapter (EU plug, included)
• 1 x Network Cable (1M)
• 1 x English User Manual

3. Hardware Overview

Familiarize yourself with the ports and buttons on your EC21 router:

• TYPE-C: 5V/1A or above power adapter. DC input with Type-C interface.
• Power: DC 12V/1A power adapter (included).
• LAN: Four 100Mbps LAN ports for high-speed transmission.
• SIM Card Slot: Supports nano SIM card only.
• Rst (Reset): Press and hold this key for 3 seconds to restore the router to factory settings.

4. Setup Guide

4.1 SIM Card Installation

Ensure your SIM card is valid (band compatibility & active data plan) before installation.

1. Locate the SIM card slot on the back of the router.
2. Insert the nano SIM card into the slot with the correct orientation.
3. Connect the power adapter to the router's power port and plug it into an electrical outlet.
4. Wait approximately 1-2 minutes for the router to power on and recognize the SIM card.

4.2 Initial Configuration (Web Interface)

The device management page is the interface for users to configure device functions. The default gateway IP address is 192.168.1.1, and the login password is 'admin'.

1. Connect your computer or mobile device to the router's Wi-Fi network (SSID and password are on the router's bottom label).
2. Open a web browser and enter the default gateway IP address: 192.168.1.1.
3. Enter the default username "admin" and password "admin" to log in.

4. After logging in, you will be prompted to run a Quick Setup. Click "Quick Setup" or "Skip" to proceed.

5. Operating Instructions

5.1 Connecting Devices

The router supports connecting up to 32 devices via Wi-Fi and wired connections through its four LAN ports.

Wi-Fi Connection:

1. Ensure the router is powered on and the Wi-Fi indicator light is active.
2. On your device (smartphone, laptop, etc.), search for available Wi-Fi networks.
3. Select the SSID (network name) displayed on the router's bottom label.
4. Enter the Wi-Fi password (also on the router's bottom label) to connect.

Wired Connection:

1. Connect one end of an Ethernet cable to a LAN port on the router.
2. Connect the other end of the Ethernet cable to the Ethernet port on your computer or other wired device.

5.2 Advanced Settings (Web Interface)

Access the web management interface (192.168.1.1) to configure advanced network settings.

Internet Connection APN Configuration:

This screen allows you to set LTE dialing related functions. You can select the preferred network mode (e.g., LTE working mode or WCDMA working mode), set MTU parameters, and configure APN settings. If the SIM card is special, you may need to manually set the APN.

To manually set APN:

• Enter "Profile Name", "APN Information", and select "Authentication Method" (these three are required).
• Enter "User Name" and "Password" (optional).
• Click "Confirm" and wait for the pop-up box to indicate success.
• If you want to configure a custom APN, select the new configuration in the drop-down box of "Configuration File", then click "Set Default".

Note: The default APN configuration cannot be deleted in Manual mode and needs to be modified to a non-default configuration before deletion.

Manual Network Selection:

For special SIM cards, you can manually search for and select networks that can be registered.

PIN Management:

This interface provides SIM card PIN management functions, enabling, disabling, and verifying SIM PINs for added security.

BAND LTE Bands:

You can check the frequency bands to be locked. After selecting, click "Apply". The device will reboot, the configuration will take effect, and the device will perform a network search and reside in the network again.

USSD Settings:

For some SIM cards, USSD dialing can be initiated from this interface if the USSD function is required. USSD information is also displayed here.

Ping Settings:

The Ping setting allows you to configure the device to automatically reboot without network or reboot at a fixed time. This feature is disabled by default.

6. Maintenance

6.1 FOTA Remote Upgrade

The router supports FOTA (Firmware Over-The-Air) remote upgrade functionality. This allows for convenient updates to the device's firmware, ensuring optimal performance and access to new features. Check the web management interface for available updates.

6.2 Resetting the Router

If you forget your username/password or encounter errors preventing access to the web management interface, you can restore the router to its factory default settings:

1. Ensure the router is powered on.
2. Locate the "Rst" (Reset) button on the back panel (refer to Figure 3).
3. Using a thin object (like a paperclip), press and hold the reset button for 10 seconds.
4. Release the button. The router will reboot with factory default settings.

7. Troubleshooting

7.1 Common Issues and Solutions

• Router's maximum speed: The theoretical maximum wireless WiFi speed is 300 Mbps. FDD-LTE (DL/UL): 150 Mbps / 50 Mbps. HSPA+ (DL/UL): 21 Mbps / 5.76 Mbps. Actual speeds vary due to environmental factors (signal strength, interference). Check the web management interface homepage for real-time speed data.
• SIM card not recognized / Network error (Red "X" or Red SIM icon):
  • Confirm SIM card validity (band compatibility & active data plan).
  • Ensure the SIM is inserted correctly into the router's slot.
  • Check band compatibility between the router and SIM card using the global frequency chart (refer to Figure 14).
  • Use mainstream SIM cards from large carriers to minimize manual configuration.
• Can’t find the router’s Wi-Fi signal:
  • Connect a computer to a LAN port via a network cable. Log in to the router’s management interface (192.168.1.1), navigate to Advanced Settings -> WLAN Settings -> WLAN Basic Setup, and ensure the WLAN function is enabled.
  • If no computer is available, reset the router to factory settings (see Section 6.2).
• Router lights are on with data transmission, but the speed is slow:
  • Network speed varies due to peak-hour congestion or signal interference.
  • Optimize speed by placing the router near a window or in a strong signal area.
  • Avoid obstacles or interference sources (e.g., microwaves, refrigerators, thick walls).
  • Reduce distance between devices and the router.
• Forgot username and password:
  • Press and hold the reset button on the device for 10 seconds (while powered on) to restore factory default settings (see Section 6.2).
• IMEI modification:
  • Log in to the router backend (WEBUI) at 192.168.1.1.
  • In the browser address bar, enter http://192.168.1.1/sid.html and press Enter.
  • Enter the IMEI number to be changed and click SET. A prompt of "OK" indicates successful change.

8. Specifications

8.1 Supported Frequency Bands (Asia, Europe, Africa Version)

• FDD LTE: B1/B3/B7/B8/B20
• TDD LTE: B38/B40/B41
• WCDMA: B1/B8

9. User Tips

• Self-Diagnosis: 90% of issues can be self-diagnosed via the router's web management interface. Always check the status icons (top-right corner) for network or SIM recognition errors.
• Reboot After Changes: After making any configuration changes in the web interface, it is recommended to reboot the router and reconnect to Wi-Fi for changes to take full effect.
• SIM Card Choice: To minimize manual configuration and ensure better compatibility, use mainstream SIM cards from large carriers. Regional carriers may update bands frequently, potentially requiring manual adjustments.
• Optimal Placement: For the best signal and speed, place the router near a window or in an area with strong cellular signal. Avoid placing it near obstacles or sources of interference like microwaves, refrigerators, or thick walls.

10. Warranty and Support

For technical support, warranty information, or service inquiries, please contact the XUNYOU-LINK Official Store or your point of purchase. Keep your purchase receipt as proof of purchase.