Introduction
The Devolo WiFi 5 (ac) Repeater is a powerful device designed to extend your existing Wi-Fi network coverage and improve signal strength in areas with weak or no Wi-Fi. It functions as both a Wi-Fi amplifier and an alternative access point, offering high-speed data transmission up to 1200 Mbps across both 2.4 GHz and 5 GHz bands simultaneously. Equipped with a Gigabit Ethernet port, it allows you to connect wired devices such as smart TVs, PCs, or gaming consoles directly to your network. Its compact design ensures it blends discreetly into any environment while providing stable and secure Wi-Fi throughout your home, protected by WPA2 encryption.
What's in the Box
- 1x Devolo WiFi 5 (ac) Repeater unit
- 1x Installation Manual

Image: Contents of the Devolo WiFi 5 (ac) Repeater package, showing the repeater unit and the installation manual.
Product Overview
Familiarize yourself with the key components of your Devolo WiFi 5 (ac) Repeater:
- WPS Button: Used for quick and easy setup with WPS-enabled routers.
- Signal Strength Indicator: LEDs on the front panel indicate the current Wi-Fi signal strength from your router, helping you find the optimal placement.
- Gigabit Ethernet Port: Located at the bottom, this port allows for a high-speed wired connection to devices.
- Power Plug: Integrated into the back for direct connection to a wall outlet.

Image: Multiple views of the Devolo WiFi 5 (ac) Repeater, highlighting its compact design, WPS button, and Ethernet port.
Setup
There are two primary methods to set up your Devolo WiFi 5 (ac) Repeater:
1. WPS (Wi-Fi Protected Setup) Configuration
- Plug the Devolo Repeater into an electrical outlet near your existing Wi-Fi router.
- Wait for the repeater to power on and its Wi-Fi indicator light to start blinking.
- Press the WPS button on your Wi-Fi router.
- Within two minutes, press the WPS button on the Devolo Repeater.
- The Wi-Fi indicator lights on both devices should turn solid, indicating a successful connection.
- Unplug the repeater and move it to a suitable location between your router and the area needing improved Wi-Fi coverage. Ensure the signal strength indicator shows a good connection.
2. Manual Configuration (via Web Interface)
If your router does not support WPS or you prefer manual setup:
- Plug the Devolo Repeater into an electrical outlet.
- Connect your computer or mobile device to the repeater's default Wi-Fi network (SSID and password can be found on the device label or in the installation manual).
- Open a web browser and enter the repeater's default IP address (e.g.,
http://devolo.repeateror192.168.1.254, refer to the manual for the exact address). - Follow the on-screen instructions to select your existing Wi-Fi network and enter its password.
- You can choose to use the same network name (SSID) or create a new one for the extended network.
- Once configured, unplug and reposition the repeater as described in step 6 of WPS configuration.
3. Access Point Mode
The repeater can also function as an access point, creating a new Wi-Fi network from a wired Ethernet connection:
- Connect an Ethernet cable from your router (or an existing network port) to the Gigabit Ethernet port on the Devolo Repeater.
- Plug the repeater into an electrical outlet.
- Configure the repeater via the web interface (as described in manual configuration) and select 'Access Point' mode.
- Set up a new Wi-Fi network name (SSID) and password for the access point.

Image: The Devolo WiFi 5 (ac) Repeater plugged into a standard wall outlet, ready for setup.
Operating
Once set up, your Devolo WiFi 5 (ac) Repeater operates automatically to extend your Wi-Fi coverage.
- Dual-Band Operation: The repeater simultaneously extends both 2.4 GHz and 5 GHz Wi-Fi bands, allowing your devices to connect to the optimal frequency for speed and range.
- Gigabit Ethernet Connectivity: Use the integrated Gigabit Ethernet port to provide a stable, high-speed wired connection for devices that benefit from it, such as desktop computers, smart TVs, or gaming consoles.
- Optimal Placement: The signal strength indicator LEDs on the repeater help you determine the best location for optimal performance. Aim for a spot where you receive at least two or three solid signal bars from your main router.

Image: A floor plan illustrating how the Devolo Repeater extends Wi-Fi coverage throughout a home, reaching devices in various rooms.
Maintenance
To ensure the longevity and optimal performance of your Devolo WiFi 5 (ac) Repeater, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the device with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Ventilation: Ensure the repeater is not covered or placed in an enclosed space that could obstruct airflow, as proper ventilation is crucial for cooling.
- Environmental Conditions: Avoid exposing the device to extreme temperatures, direct sunlight, high humidity, or water.
- Firmware Updates: Periodically check the Devolo website for firmware updates to ensure your device has the latest features and security enhancements.
Troubleshooting
If you encounter issues with your Devolo WiFi 5 (ac) Repeater, try the following steps:
- No Wi-Fi Signal from Repeater:
- Ensure the repeater is plugged into a working power outlet.
- Check the signal strength indicator. If it shows no signal or a very weak signal, move the repeater closer to your main router.
- Verify that your main router's Wi-Fi is active and broadcasting.
- Slow Connection Speed:
- Relocate the repeater to a position where it receives a stronger signal from your main router (indicated by more solid LEDs).
- Ensure there are no major obstructions (thick walls, large metal objects) between the repeater and your devices, or between the repeater and the router.
- Check for interference from other electronic devices (e.g., microwaves, cordless phones).
- Cannot Access Web Interface:
- Ensure your device is connected to the repeater's Wi-Fi network or via an Ethernet cable.
- Verify the correct IP address or domain name (e.g.,
http://devolo.repeater) is entered in the browser. - Try clearing your browser's cache or using a different browser.
- Repeater Not Connecting to Router:
- Restart both your router and the repeater.
- Attempt WPS setup again, ensuring you press the buttons within the specified timeframe.
- Try manual configuration via the web interface.
- Factory Reset: If all else fails, perform a factory reset. Locate the reset button (often a small pinhole) on the device, press and hold it for 10-15 seconds until the lights flash, then release. This will revert the repeater to its default settings, requiring you to set it up again.
Specifications
| Brand | Devolo |
| Model Number | 9790 |
| Color | White |
| Wireless Standard | WiFi 5 (802.11ac), compatible with 802.11b/g/n |
| Data Transfer Rate | Up to 1200 Mbps (combined), 867 Mbps (5 GHz) |
| Frequency Bands | Dual Band (2.4 GHz, 5 GHz) |
| Ethernet Port | 1x Gigabit Ethernet |
| Device Compatibility | Router |
| Dimensions (L x W x H) | 9.1 x 5.9 x 3.8 cm |
| Special Feature | Stable Wi-Fi extension |
Warranty
The Devolo WiFi 5 (ac) Repeater comes with a 3-year manufacturer's warranty. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. For specific terms and conditions, please refer to the warranty information provided with your product or visit the official Devolo website.
Support
For further assistance, technical support, or to download the latest drivers and firmware, please visit the official Devolo support website. You can typically find FAQs, troubleshooting guides, and contact information for customer service there.
Official Devolo Website: www.devolo.com
