1. Product Overview
The Comfast CF-WR765AC is a high-performance 1200Mbps dual-band WiFi signal amplifier designed to extend your existing WiFi network coverage and eliminate dead spots. It features two high-gain 5dBi omnidirectional antennas and four independent signal amplifier chips to effectively enhance WiFi signals throughout your home or office.
This device is ideal for large multi-bedroom areas and houses with incomplete router coverage, providing true full-house WiFi coverage.
Figure 1: Comfast CF-WR765AC Dual Band WiFi Repeater
Key Features:
- Dual Band Gigabit Speed: Up to 1200Mbps (300Mbps on 2.4GHz and 867Mbps on 5.8GHz).
- Enhanced Signal: Equipped with 4 independent Power Amplifier (PA) chips for stronger signal penetration and wider coverage.
- External Antennas: Two 5dBi omnidirectional antennas improve signal transmission and reception.
- Multiple Operating Modes: Supports Repeater, AP, and Router modes for flexible application.
- Easy Setup: Simple web-based setup, no app required.
- Efficient Heat Dissipation: Designed with cooling holes for stable operation.
- Power-off Memory: Retains settings after power loss.
Figure 2: Signal Doubling and Key Features
Video 1: Comfast CF-WR765AC Product Features Overview
2. Package Contents
Please check the package for the following items:
- 1 x Comfast CF-WR765AC WiFi Repeater
- 1 x User Manual
- (Power adapter may be included depending on region/seller)
Figure 3: Packaging and Device
3. Specifications
| Feature | Description |
|---|---|
| Model | CF-WR765AC |
| Wireless Standard | IEEE802.11a/b/g/n/ac |
| Transmission Rate | 2.4G: 300Mbps; 5.8G: 867Mbps (Total 1200Mbps) |
| RF Parameters | Transmit power: 400mW (=26dBm); Receiving sensitivity: -98dBm |
| Hardware Specification | 2 chips MT, 4 Power Amplifier Chips; DDR: 64MB, Flash: 8MB |
| Button | 1 * WPS/RST Button |
| Indicator Light | Power light, network port light, signal indicator light |
| Antenna | 2 * 5dBi Omnidirectional Antennas |
| Power | 100~240Vac |
| Power Consumption | 16W |
| Physical Port | 1 * 10/100Mbps RJ45 WAN/LAN Ethernet Port |
| Working Mode | AP / Repeater / Router Mode |
| Case | Plastic Case (ABS Material) |
| Size (W*L*H) | 85mm * 50mm * 129mm (including antenna) |
| 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 |
Figure 4: Detailed Product Specifications
Figure 5: Device Dimensions (129mm H, 85mm W, 50mm D)
4. Setup Instructions
The Comfast CF-WR765AC is designed for easy setup without the need for a dedicated mobile application. Follow these steps to configure your device:
- Power On: Plug the WiFi Repeater into a power outlet.
- Connect to Repeater's WiFi: On your mobile phone or computer, connect to the WiFi network named "COMFAST_xxx" (where xxx is a unique identifier).
- Access Setup Page: Open a web browser and enter the IP address
192.168.10.1in the address bar. - Select Mode: On the setup interface, click on the "Repeater Mode" option.
- Choose Network: Select the WiFi network you wish to extend from the list.
- Enter Password: Input the password for your chosen WiFi network.
- Apply Settings: Click "Settings" or "Apply". The indicator light on the repeater will turn blue when the setup is successful (this may take a few seconds).
Figure 6: Easy Setup Guide
5. Operating Modes
The Comfast CF-WR765AC supports multiple operating modes to suit various networking needs:
5.1. Repeater Mode (Wireless to Wireless)
In Repeater Mode, the device extends the WiFi signal of your main router wirelessly. This mode is ideal for eliminating weak signal areas and dead spots, providing extended coverage to rooms far from your main router, such as bedrooms or bathrooms.
Figure 7: Repeater Mode (Wireless to Wireless)
5.2. AP/Router Mode (Wired to Wireless)
In AP/Router Mode, you can connect the device to your main router via an Ethernet cable. The repeater then transmits a new WiFi signal, effectively converting a wired connection into a wireless access point. This is useful if your main router is too far to provide a strong wireless signal, but you have an available Ethernet port.
Figure 8: AP/Router Mode (Wired to Wireless)
6. Maintenance
- Placement: For optimal performance, place the repeater in a central location between your router and the area needing extended coverage. Avoid placing it near large metal objects, concrete walls, or other electronic devices that may cause interference.
- Cleaning: Keep the device clean and free from dust. Use a soft, dry cloth for cleaning. Do not use liquid cleaners or aerosols.
- Ventilation: Ensure the cooling holes are not obstructed to allow for efficient heat dissipation.
- Firmware Updates: Periodically check the manufacturer's website for any available firmware updates to ensure optimal performance and security.
Figure 9: Device Design for Heat Dissipation
Figure 10: Recommended Placement for Whole House Coverage
7. Troubleshooting
- Cannot access setup page (192.168.10.1): Ensure your device is connected to the repeater's default WiFi network (COMFAST_xxx) and not your main router's network. Try clearing your browser's cache or using a different browser.
- No internet connection after setup: Double-check the password for your main WiFi network during setup. Ensure the repeater is within range of your main router.
- Weak signal from repeater: Try repositioning the repeater closer to your main router or in a more central location. Avoid physical obstructions like thick walls.
- Repeater not powering on: Ensure it is securely plugged into a working power outlet.
- Forgotten password for repeater's management page: You may need to perform a factory reset. Locate the WPS/RST button (usually a small pinhole) and press and hold it for about 5-10 seconds until the lights flash, then release. The device will revert to factory default settings.
8. User Tips
- For best performance, consider using the 5GHz band for devices that require higher speeds (e.g., streaming, gaming) and are closer to the repeater, as it offers faster speeds but has less wall penetration.
- The 2.4GHz band is better for devices further away or when signal needs to pass through walls, as it provides better range and wall penetration.
- If you experience slow speeds, try to minimize the number of devices connected to the extended network or ensure the repeater is not overloaded.
Figure 11: Understanding Dual Band Performance
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Comfast website. Keep your proof of purchase for warranty claims.





