1. Product Overview
The Comfast CF-AC1200 is a dual-band WiFi repeater designed to extend the coverage of your existing wireless network. It supports both 2.4GHz and 5GHz bands, offering a combined transmission rate of up to 1200Mbps for smooth streaming and gaming.

Figure 1: Comfast CF-AC1200 WiFi Repeater Front View

Figure 2: Repeater Features and Indicators
- Signal Indicator: Displays the strength of the received WiFi signal.
- WPS Light: Indicates WPS status.
- PWR Light: Indicates power status.
- Folded Antenna: Two external 3dBi antennas for enhanced signal reception and transmission.
- Dissipating Heat Holes: Designed for efficient heat dissipation to ensure stable operation.
- Reset Button: Used to restore factory settings.
- Power Switch: To turn the device on or off.
2. Setup Guide
Follow these simple steps to set up your Comfast CF-AC1200 WiFi Repeater:

Figure 3: Quick Setup Steps
- Connect to Repeater: Use your cellphone, computer, or iPad to connect to the WiFi network named "COMFAST_XXX" (where XXX is unique to your device).
- Access Setup Interface: Open a web browser and enter
192.168.10.1in the address bar. This will take you to the repeater's setting interface. Click on "Repeater Mode". - Configure Extension: Select the name of the WiFi network you wish to extend. Enter the password for that network and click "Settings". The repeater will configure itself successfully after approximately 5 seconds, and the blue signal light will illuminate.
For a visual guide, please watch the official product video:
Video 1: Comfast CF-AC1200 Product Overview and Setup Demonstration
3. Operating Instructions
Once configured, the Comfast CF-AC1200 will automatically extend your chosen WiFi network. You can monitor its status using the intelligent signal indicator.

Figure 4: Intelligent Signal Indicator
- Blue Light (Solid): Indicates a strong signal connection.
- Red Light: Indicates a weak signal connection.
- Blue Light (Flashing): Indicates signal in transit or during configuration.
The repeater is designed to provide whole-house coverage, supporting 5G WiFi for smooth activities like live video streaming and online gaming.

Figure 5: 5G WiFi for Smooth Video Streaming

Figure 6: Whole House 5G WiFi Coverage
4. Maintenance
To ensure optimal performance and longevity of your Comfast CF-AC1200 repeater, consider the following maintenance tips:
- Placement: Place the repeater in a well-ventilated area, away from obstructions that could block airflow to the heat dissipation holes.
- Cleaning: Periodically clean the exterior of the device with a soft, dry cloth. Avoid using liquid cleaners or aerosols.
- Firmware Updates: Check the official Comfast website for any available firmware updates to ensure the device operates with the latest features and security patches.
- Heat Dissipation: The device features excellent heat dissipation design to ensure stable operation for extended periods. Avoid covering the device or placing it in enclosed spaces where heat can build up.

Figure 7: Excellent Heat Dissipation for Stable Performance
5. Troubleshooting
If you encounter issues with your WiFi repeater, consider the following common problems and solutions:

Figure 8: Common WiFi Repeater Issues
- No Signal or Weak Signal:
- Placement: Ensure the repeater is placed in an optimal location, ideally halfway between your main router and the area where you need extended coverage. Avoid placing it too far from the router or in areas with many physical obstructions. The signal indicator (Figure 4) can help you find the best position.
- Interference: Keep the repeater away from devices that emit strong electromagnetic interference (e.g., microwaves, cordless phones).
- Difficulty Configuring:
- Correct IP Address: Double-check that you are entering the correct IP address (
192.168.10.1) in your browser. - Network Name: Ensure you are connecting to the repeater's default WiFi network (e.g., "COMFAST_XXX") before attempting configuration.
- Reset: If configuration fails repeatedly, press and hold the Reset Button (Figure 2) for about 5-10 seconds to restore factory settings, then try the setup process again.
- Correct IP Address: Double-check that you are entering the correct IP address (
- Slow Speeds:
- Dual-Band Compatibility: Ensure your devices are capable of connecting to the 5GHz band for higher speeds, especially for demanding tasks like video streaming or gaming.
- Router Compatibility: Verify that your main router is also dual-band if you intend to extend both 2.4GHz and 5GHz networks.
6. Specifications

Figure 9: Detailed Product Specifications
| Feature | Detail |
|---|---|
| Model No. | CF-AC1200 |
| Brand | Comfast |
| Chipset | MT7628DAN+MT7612E |
| Working Frequency | 2.412-2.472GHz; 5.180-5.825GHz (Dual-Band) |
| Wireless Standard | IEEE802.11ac/a/b/g/n |
| Transmission Rate | 1200Mbps (2.4G: 300Mbps; 5.8G: 867Mbps) |
| Antenna | 2*3dBi High-Gain External Antennas |
| Buttons | WPS/RESET, Power Switch |
| Indicators | Power Light, WPS Light, Signal Indicator (Red & Blue) |
| Encryption | WPA-PSK/WPA2-PSK; WPA/WPA2 |
| Working Mode | Repeater Mode |
| Product Size | 126*50*35mm |
| Power | 100-240V |
| WAN Ports | 1 x 10/100Mbps |
| LAN Ports | 1 |
| With Modem Function | No |
| Supports WPS | Yes |
| Supports WDS | No |
| Function | Firewall, VPN |
| Certification | CE, FCC |
| Working Temperature | -10°C~55°C |
| Storage Temperature | -40°C~70°C |
| Working Humidity | 10%~90%RH Non-condensing |
| Storage Humidity | 5%~90%RH Non-condensing |
7. Warranty and Support
The Comfast CF-AC1200 comes with a 1-year warranty from the date of purchase. For any technical assistance or inquiries, please contact Comfast customer support. All emails are typically answered within 24 hours.

Figure 10: Warranty and Service Overview
8. User Tips
To maximize your experience with the Comfast CF-AC1200 WiFi Repeater:
- Optimal Placement: Experiment with different locations for the repeater. The ideal spot is usually where your main router's signal is still strong, but before it starts to significantly degrade. Use the signal indicator lights to guide you.
- Dual-Band Advantage: If your devices support 5GHz, prioritize connecting them to the 5GHz network provided by the repeater for faster speeds and less interference, especially for activities like gaming or HD video streaming.
- Regular Checks: Periodically check the signal indicator to ensure the repeater maintains a strong connection to your main router. If it shows a weak signal (red light), consider repositioning it.





