1. Introduction
The KuWFi C940 is a versatile desktop WiFi 6 router designed to provide stable and wide wireless signal coverage. It features a 100Mbps Ethernet port and a Nano SIM card slot, supporting 2.4GHz Wi-Fi, IPV6/IPV4, and connections for up to 10 devices simultaneously. This manual will guide you through the setup, operation, and maintenance of your router.
2. Key Features
- CAT4 4G LTE Router: Supports Nano SIM card for converting 4G LTE signal to Wi-Fi. 4G LTE transmission rates up to 150Mbps (Download) / 50Mbps (Upload).
- 300Mbps 2.4GHz Wireless Wi-Fi: Provides 2.4GHz Wi-Fi signals with rates up to 300Mbps.
- Multiple Working Modes: Supports AP Mode, 4G to Wi-Fi Signal Mode, and 4G to Wired Mode.
- External Antennas: Equipped with 4 non-detachable external antennas for stable and enhanced signal transmission (4G LTE and 2.4GHz Wi-Fi).
- Ethernet Port: Includes 1x 10/100 Mbps RJ-45 LAN port.
- Multi-Device Support: Connects up to 10 users/devices simultaneously, including mobile phones, televisions, cameras, and computers.
- Plug and Play: Instant internet access upon SIM card insertion (APN configuration may be required for some SIM cards).
3. Package Contents
Please check the package for the following items:
- 1 x KuWFi 4G LTE Router (C940)
- 1 x Ethernet Cable
- 1 x Power Adapter
- 1 x Quick Installation Guide
4. Specifications
| Feature | Description |
|---|---|
| Brand Name | KuWFi |
| Model | C940 |
| CPU | ASR1803 Series + AIC8800DW |
| Flash | 64Mb |
| RAM | 256Mb |
| AC Input | 100~240V, 50~60Hz |
| DC Output | 12V, 1A |
| 4G Download Rate | Up to 150Mbps |
| 4G Upload Rate | Up to 50Mbps |
| 2.4G Wi-Fi Transmission Rate | 300 Mbps |
| Wi-Fi Supported Frequency | 2.4G |
| Wi-Fi Transmission Standard | 802.11g |
| LAN Ports | 1 x 10/100Mbps |
| WAN Ports | 1 x 10/100Mbps |
| SIM Card Slot | 1 x 4FF SIM card Slot (Nano) |
| USB Interface | 1 (for 4G modem upgrade only) |
| Reset Button | 1 |
| Antenna Type | Fixed |
| Operation Temperature | -10°C ~ 45°C |
| Storage Temperature | -20°C ~ 60°C |
| Relative Humidity | 10%~90% (Non-condensing) |
5. Setup Guide
5.1. Hardware Connection
- Insert SIM Card: Locate the Nano SIM card slot on the back of the router. Gently insert your Nano SIM card until it clicks into place. Ensure the card is oriented correctly as shown in the diagram.
- Connect Power: Connect the provided power adapter to the router's 'POWER' port and plug it into a wall outlet. The router will power on automatically.
- (Optional) Ethernet Connection: If you wish to use a wired connection, connect one end of the Ethernet cable to the 'LAN' port on the router and the other end to your computer or other network device.
5.2. Initial Wi-Fi Connection
Once powered on, the router will broadcast a Wi-Fi signal. You can find the default SSID (Wi-Fi network name) and password printed on a label on the bottom of the router or in the Quick Installation Guide. Connect your wireless device (phone, laptop, etc.) to this network.
5.3. Web UI Configuration (APN Settings)
For some SIM cards, you may need to configure the Access Point Name (APN) settings to access the internet. Follow these steps:
- Access Web UI: Open a web browser on a device connected to the router's Wi-Fi or LAN. Enter the default IP address (usually
192.168.1.1) in the address bar. - Login: Enter the default username and password (usually
adminfor both) when prompted. - Configure APN: Navigate to the 'APN and Network Setting' section. Enter the correct APN information provided by your SIM card's mobile operator. Save the settings.
- Verify Connection: After saving, the router should connect to the 4G network, and you should have internet access.
6. Operating Modes
The KuWFi C940 router supports three primary operating modes:
- AP Mode (Access Point Mode):
Connect an Ethernet cable from your existing network (e.g., another router or modem) to the WAN port of the C940. The C940 will then broadcast a Wi-Fi signal and provide network access through its LAN port, extending your existing network. - 4G to Wi-Fi Signal Mode:
Insert a Nano SIM card into the router. After configuring the correct APN settings via the Web UI, the router will convert the 4G mobile network signal into a Wi-Fi signal, allowing wireless devices to connect to the internet. - 4G to Wired Mode:
Similar to 4G to Wi-Fi mode, insert a Nano SIM card and configure APN settings. Once the router is connected to the 4G network, you can connect other network devices (e.g., a desktop computer, smart TV) to the router's LAN port using an Ethernet cable to provide them with wired internet access.
7. Maintenance
- Regular Cleaning: Keep the router clean and free from dust. Use a soft, dry cloth to wipe the exterior.
- Firmware Updates: Periodically check the manufacturer's website for firmware updates. Updating the firmware can improve performance, add new features, and fix bugs.
- Optimal Placement: Place the router in a central location, away from obstructions and other electronic devices that may cause interference, to ensure optimal signal coverage.
- Power Cycle: If you experience network issues, try power cycling the router (unplugging it from power for 10-15 seconds and then plugging it back in).
8. Troubleshooting
8.1. No Internet Access
- Check SIM Card: Ensure the Nano SIM card is correctly inserted and activated with a data plan.
- APN Settings: Verify that the APN settings in the Web UI are correct for your mobile operator.
- Signal Strength: Check the 4G signal strength indicator on the router or in the Web UI. If the signal is weak, try relocating the router.
- Router Status: Log in to the Web UI and check the router's status page for any error messages.
8.2. Weak Wi-Fi Signal or Limited Range
- Router Placement: Move the router to a more central location in your home, away from walls, large metal objects, and other electronic devices (like microwaves or cordless phones) that can cause interference.
- Antenna Position: Adjust the external antennas for optimal reception.
- Interference: Other Wi-Fi networks or electronic devices might be causing interference. Try changing the Wi-Fi channel in the router's settings.
8.3. Cannot Access Web UI
- IP Address: Ensure you are using the correct IP address (default is
192.168.1.1). - Connection: Make sure your device is connected to the router via Wi-Fi or Ethernet.
- Browser Cache: Clear your browser's cache and cookies, or try a different browser.
9. User Tips
- Device Limit: The router officially supports up to 10 simultaneous users/devices. While some users might attempt to connect more, performance may degrade beyond this recommended limit.
- Regional Compatibility: Before purchasing a SIM card, verify its compatibility with the router's supported 4G LTE and 3G WCDMA bands. The router comes in different versions (e.g., Asia Version, EU Version) with specific band support. Refer to the compatibility table or product specifications for details.
10. Warranty and Support
For warranty information and technical support, please refer to the official KuWFi website or contact their customer service directly. Keep your purchase receipt for warranty claims.
