1. Introduction
The rockspace AC1200 WiFi Extender is designed to expand your existing wireless network coverage, eliminate Wi-Fi dead zones, and provide stable, high-speed internet access throughout your home or office. With dual-band technology (2.4GHz and 5GHz), it offers a combined speed of up to 1200Mbps, ensuring smooth streaming, gaming, and browsing experiences.

Image: Front view of the rockspace AC1200 WiFi Extender, showing its sleek black design and indicator lights.
2. Key Features
- Excellent Bandwidth up to 1200Mbps: Combines 300 Mbps in the 2.4 GHz band and 867 Mbps in the 5 GHz band for ultra-fast wireless speeds.
- Stable Signal Amplification: Automatically recognizes and switches to the strongest signal channel, ensuring network quality and stability.
- Wide Compatibility: Compatible with over 99% of routers in the market, supporting IEEE 802.11ac/n/g/b standards.
- Extensive Coverage: Expands Wi-Fi signal up to 120 square meters (1,290 sq ft) with two external dual-band omnidirectional antennas.
- Ethernet Port: Includes a Gigabit Ethernet port, allowing the extender to function as a wireless adapter for wired devices or as an Access Point.
- One-Click WPS Setup: Easily expands wireless coverage by pressing the WPS button, simplifying the setup process.
- Connect Multiple Devices: Supports connection for up to 35 devices simultaneously.

Image: Illustration showing the dual-band performance of the WiFi extender, with 867 Mbps on 5GHz and 300 Mbps on 2.4GHz, supporting various activities like 4K streaming and online gaming.
3. Package Contents
Upon opening the package, please ensure all items are present and in good condition:
- rockspace AC1200 WiFi Extender
- Quick Installation Guide
- Warranty Card (if applicable)
4. Setup
4.1. WPS (Wi-Fi Protected Setup) Method
The WPS method offers a quick and easy way to connect your extender to your router.
- Plug the rockspace AC1200 WiFi Extender into an electrical outlet near your router. Wait for the Power (PWR) indicator light to turn solid blue.
- Press the WPS button on your main router.
- Within 2 minutes, press the WPS button on your rockspace WiFi Extender.
- The Signal indicator light on the extender will blink during connection and turn solid blue when successfully connected.
- Once connected, you can unplug the extender and relocate it to a desired location within your home where you need extended Wi-Fi coverage.

Image: Visual guide demonstrating the one-click WPS setup process between a router and the rockspace WiFi Extender.
4.2. Web-Based Setup Method
If your router does not have a WPS button or you prefer a manual setup, use the web-based method.
- Plug the rockspace AC1200 WiFi Extender into an electrical outlet near your router. Wait for the Power (PWR) indicator light to turn solid blue.
- On your computer or mobile device, connect to the extender's default Wi-Fi network (e.g., "rockspace_EXT" or similar, usually found on a label on the device). Do not connect to your main router's Wi-Fi.
- Open a web browser and enter the default IP address or domain name (e.g.,
192.168.0.254orre.rockspace.local) into the address bar. Refer to the Quick Installation Guide for the exact address. - Follow the on-screen instructions to create an administrator password, select your router's Wi-Fi network, and enter its password.
- Once configured, the extender will restart, and the Signal indicator light will turn solid blue.
- You can now unplug the extender and relocate it to your desired location.

Image: A hand holding a smartphone showing the Wi-Fi settings, connected to the extender's network, illustrating the web-based setup process.
5. Operating Modes
The rockspace AC1200 WiFi Extender supports two primary operating modes:
5.1. Repeater/Extender Mode
In this mode, the device extends the range of your existing Wi-Fi network. It receives the wireless signal from your main router and re-broadcasts it, effectively expanding coverage to areas with weak or no signal. This is the most common use case for the extender.
5.2. Access Point (AP) Mode
When connected to your router via an Ethernet cable, the extender can function as a wireless access point. This allows you to create a new Wi-Fi network from a wired internet connection, ideal for areas where running an Ethernet cable is feasible but Wi-Fi coverage is poor.

Image: Diagram illustrating the Access Point mode, where the extender is hardwired to the router via an Ethernet cable, providing stable Wi-Fi to devices.
6. Placement Guidelines
Optimal placement of your WiFi extender is crucial for maximizing signal strength and coverage. Consider the following factors:
- Mid-point Placement: Place the extender roughly halfway between your router and the area where you need improved Wi-Fi coverage. The Signal indicator light on the extender can help you find the optimal position based on its color (usually blue for good signal, red for weak).
- Minimize Obstructions: Wi-Fi signals can be weakened by physical obstructions like thick walls, metal objects, and closed doors. Try to place the extender in an open area with a clear line of sight to both your router and the devices you want to connect.
- Avoid Interference: Electronic devices such as microwaves, cordless phones, Bluetooth devices, and even other Wi-Fi devices can cause interference. Keep the extender away from these potential sources of electromagnetic interference.
- Elevated Position: Placing the extender on a higher shelf or table can often improve signal propagation.

Image: A diagram showing how the WiFi extender extends coverage, eliminating dead zones in a multi-story house.

Image: Examples of effective placement for the WiFi extender in various rooms like the living room, bedroom, balcony, and garage.
Video: An animated explanation of factors affecting Wi-Fi signal strength, including distance, physical obstructions like walls and doors, and electromagnetic interference from other electronic devices. It highlights how a Wi-Fi extender can augment coverage and signal strength, and advises on optimal placement to reduce dead zones.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | rockspace |
| Model | Knight BlackAC1200 |
| Wireless Communication Standard | 802.11ac |
| Data Transfer Rate | 1200 Megabits Per Second |
| Frequency Band Class | Dual-Band (2.4GHz & 5GHz) |
| Connector Type | RJ45 (Ethernet Port) |
| Coverage Area | Up to 120m² (1,290ft²) |
| Package Dimensions | 4.84 x 3.94 x 3.5 inches |
| Item Weight | 9.1 ounces |
8. Maintenance
To ensure the longevity and optimal performance of your rockspace AC1200 WiFi Extender, follow these maintenance guidelines:
- Keep it Clean: Regularly wipe the device with a soft, dry cloth to remove dust. Avoid using liquid cleaners or abrasive materials.
- Ensure Ventilation: Do not block the ventilation holes on the device. Ensure it is placed in an area with good airflow to prevent overheating.
- Avoid Extreme Conditions: Do not expose the extender to extreme temperatures, humidity, or direct sunlight.
- Firm Connections: Periodically check that the extender is securely plugged into the power outlet.
- Firmware Updates: Check the official rockspace website periodically for firmware updates. Keeping the firmware updated can improve performance and security.
9. Troubleshooting
If you encounter issues with your WiFi Extender, try the following troubleshooting steps:
- No Internet Connection / Frequent Disconnections:
- Relocate the extender closer to your main router. The Signal indicator should be solid blue.
- Ensure there are no major obstructions (thick walls, metal objects) between the extender and the router.
- Restart both your main router and the WiFi extender.
- Check if your main router's internet connection is stable.
- Slow Speed:
- Ensure the extender is placed in an optimal location (refer to Section 6).
- Reduce the number of devices connected to the extender.
- Try connecting to the 5GHz band if your devices support it, as it generally offers higher speeds.
- Check for interference from other electronic devices.
- Cannot Access Web Management Page:
- Ensure your device is connected to the extender's Wi-Fi network (not your main router's).
- Verify the IP address or domain name entered in the browser is correct (e.g.,
192.168.0.254orre.rockspace.local). - Clear your browser's cache and cookies, or try a different browser.
- Temporarily disable any VPN or firewall software on your computer.
- WPS Setup Fails:
- Ensure you press the WPS button on both the router and extender within the 2-minute window.
- Try moving the extender closer to the router during WPS setup.
- If WPS continues to fail, use the web-based setup method (Section 4.2).
- Forgot Management Password:
- Perform a factory reset on the extender. Locate the reset button (usually a small pinhole) on the device, press and hold it for about 8-10 seconds until the lights flash. This will revert the extender to its factory default settings, and you will need to set it up again.
10. Warranty and Support
rockspace provides a limited warranty for this product. Please refer to the warranty card included in your package for specific terms and conditions, including the warranty period and coverage details. For technical support, product inquiries, or warranty claims, please visit the official rockspace support website or contact their customer service through the channels provided in your product documentation.
Online Support: For the most up-to-date support resources, FAQs, and troubleshooting guides, please visit the rockspace official website.
Customer Service: Contact information for customer service can typically be found on the rockspace website or in the Quick Installation Guide.




