D-Link DWA-171 User Manual page 48

Section 6 - Troubleshooting
Click the + sign next to Network Adapters.
Right-click on D-Link DWA-171 Wireless AC Dual Band USB Adapter.
Select Properties to check that the drivers are installed properly.
Look under Device Status to check that the device is working properly. Click OK to continue.
D-Link DWA-171 User Manual 48