Product Overview
The AX900 USB Adapter delivers high-speed dual-band WiFi and Bluetooth 5.4 in one compact dongle. It supports WiFi 6, WPA3 encryption, and includes built-in drivers for plug-and-play setup. It can also simulate a mini router using Soft AP mode to share your PC’s connection with other devices.
- WiFi 6 Speeds: 2.4GHz (287Mbps) + 5GHz (600Mbps)
- Bluetooth 5.4: Backward compatible with BT 5.0–5.3
- Plug & Play: Built-in driver installer
- Secure Encryption: WPA3, WPA2-PSK, WPA-PSK, WEP
- Soft AP Mode: Share your PC’s internet like a mini router
- OS Support: Windows 10 (32/64-bit), Windows 11 (64-bit)
Installation Instructions
- Insert the AX900 dongle into a USB port.
- If Windows does not automatically install the drivers: download the raw driver package from
https://support.digitaldevices.ca/drivers/ax900wifi.rar then extract the folder to your Desktop.
- Open Device Manager and look for a device listed as Unknown Device, Network Controller, or Bluetooth Peripheral.
- Right‑click the device → Update driver → Browse my computer for drivers → select the extracted AX900 driver folder → Next.
- Repeat the same process for both components:
- WiFi (802.11ax) adapter
- Bluetooth adapter
- After installation, confirm both appear correctly in Device Manager:
- ✅ Bluetooth Adapter
- ✅ WiFi Network Adapter
- Important: If you have other WiFi or Bluetooth devices installed on your computer, disable or uninstall them to avoid driver conflicts or connection issues.
Enable Soft AP Mode (Mini Router)
- Go to Settings > Network & Internet > Mobile Hotspot
- Toggle “Share my Internet connection with other devices”
- Choose the AX900 adapter as the source
- Set your network name and password
- Nearby devices can now connect to your PC’s WiFi signal
Note: Internet sharing requires your PC to be connected via Ethernet or another network.
⚠️ Performance Note:
To achieve full advertised speeds, your router or access point must support Wi-Fi 6 (802.11ax) and offer dual-band 2.4GHz + 5GHz connectivity. Otherwise, the AX900 adapter will operate at the highest speed supported by your network hardware.
⚠️ Real-World Speed Notice:
While the AX900 adapter advertises up to 900Mbps, this figure reflects the combined theoretical maximum across both 2.4GHz and 5GHz bands. In practice, only one band is active at a time. Under ideal conditions, users may achieve up to 600Mbps on 5GHz and 287Mbps on 2.4GHz. Actual speeds depend on router capabilities, signal quality, USB port type, and environmental factors.
AX900 Bluetooth compatibility and connection tips
1. Bluetooth version compatibility
The AX900 USB WiFi + Bluetooth dongle uses a Bluetooth 5.4 chipset, but it is
fully backwards compatible with earlier versions such as Bluetooth 5.3, 5.2, 5.1, etc.
There is no special setting or “mode” required—your devices will negotiate the
correct version automatically.
2. Common causes of unstable Bluetooth connections
If you experience issues like:
- Frequent disconnects after a few seconds
- “Connection problem” messages on the phone
- Audio connects but drops or stutters
- Phone Link calls working only intermittently
the root cause is usually related to Windows 11 power management or driver behavior,
not Bluetooth version incompatibility.
3. Recommended fixes for Windows 11
A. Install the correct AX900 driver package
Download the official AX900 WiFi + Bluetooth driver package:
AX900 WiFi + Bluetooth driver (RAR)
After downloading:
- Extract the .rar file
- Run the installer
- Restart the PC
- Verify in Device Manager that both WiFi and Bluetooth are listed correctly
B. Disable Windows power saving for Bluetooth
- Open Device Manager
- Expand Bluetooth
- Right-click the Realtek Bluetooth Adapter → Properties
- Go to the Power Management tab
- Uncheck: “Allow the computer to turn off this device to save power”
C. Disable USB selective suspend
- Open Control Panel → Power Options
- Click Change plan settings for your active plan
- Click Change advanced power settings
- Expand USB settings → USB selective suspend setting
- Set to Disabled
D. Use a stable USB port
- Prefer a rear-panel USB 2.0 port for best stability
- Avoid front-panel ports and USB hubs where possible
- Use a short USB extension cable if the PC is under a desk or near interference sources
4. Phone Link and calling stability
Microsoft Phone Link relies on a stable Bluetooth Hands-Free Profile (HFP) connection.
If Windows power saving or driver issues cause the Bluetooth service to restart or
switch profiles, calls may fail even when “Audio connected” is shown.
Once the correct AX900 driver is installed and power saving is disabled, Phone Link
calling and audio are typically stable.
5. Still having issues?
If problems persist after following these steps, please:
- Check Device Manager for any warning icons under Bluetooth or Network adapters
- Try another USB port
- Reboot the PC and re-pair your phone
You can also contact our support team and include a screenshot of your Device Manager
showing the Bluetooth section so we can review your configuration.
FAQs
- Does this work with Mac or Linux? No — Windows 10/11 only.
- Is a driver CD required? No — drivers are built into the dongle.
- Can I use this for gaming? Yes, with a compatible AX900 router.
- Why don’t I see the new devices? Make sure you ran the installer from the USB drive.
- Can I use just Bluetooth or just WiFi? Yes — each installs independently.
- Can I share my PC’s internet? Yes — enable Soft AP mode via Mobile Hotspot.
Support
For additional assistance, contact us at: support@digitaldevices.ca
