USB 3.0 issues on windows 11

Question

USB 3.0 issues on windows 11

Robin Long 0

I am having an issue in Windows 11 with my USB 3.0 Ugreen Wifi Dongle.

The Ugreen Wifi dongle I have uses the Realtek 8851BU Wireless LAN WiFi 6 USB NIC driver from Realtek.

I recently upgraded my PC to windows 11 after using Windows 10, I did not experience any issues with my Ugreen Wifi Dongle on windows 10 just to add.

After upgrading to windows 11 I noticed that the wifi dongle was not performing the same as it did in Windows 10. I checked Device Manager and it was forced to use the USB 2.0 standard causing the speeds to drop.

I then forced it to use USB 3.0 so the Wifi dongle could take full advantage of the Wifi 5 ghz speeds in can. After doing this, the wifi dongle would constantly just disconnect and reconnect causing it to be unusable.

This issue is only happening in Windows 11, Windows 10 this works fine.

Steps I have tried to fix the issue:
Driver Updates
Windows Updates
And I updated my Bios to its latest version.

0 comments

1 answer

Your answer

Answer 1

Jeronimo Fuerte 38,245 Independent Advisor

Hi! Sorry to hear that you are having trouble with this situation. When you mention that you updated the driver, was that done through Windows Update or by downloading the driver directly from the manufacturer’s website? Also, before installing the updated driver, did you completely remove the previous one? After an upgrade from Windows 10 to Windows 11, some drivers may still appear compatible, but they often need to be reinstalled cleanly to work properly.

In this case, the best next step would be to fully uninstall the driver for the Wi-Fi dongle as well as the USB controller drivers, then restart the PC and install the latest versions available from the manufacturer websites for both the dongle and the motherboard or USB chipset. This helps ensure that Windows 11 is using fresh, fully compatible drivers instead of older components carried over from the previous installation.

Robin Long 0 Reputation points

2026-04-06T23:52:30.3566667+00:00

Hello

The driver that I used was straight from the manufacturers website and I uninstalled the driver before installing this one.

I didn't "upgrade" from 10 to 11 so to say. I performed a clean install of Windows 11. So all drivers should be new and only the ones it needs.
Jeronimo Fuerte 38,245 Reputation points Independent Advisor

2026-04-07T00:00:26.3233333+00:00

Could you please share a screenshot of how your device manager looks, when the device is connected? Full screen preferably and unknown devices if any
Robin Long 0 Reputation points

2026-04-07T00:13:37.0266667+00:00

Here are the screenshots requested, there is 3 of them to fit all the devices on screen. the device in question is realtek 8851bu wireless lan wifi 6 usb nic. As seen in the screenshot below, it is forced to use USB 2.0, when it can be connected as USB 3.0 and is connected to a USB 3.0 port on the back of the PC.

When changing this mode to USB 3.0 it causes the device to connect and discconect over and over again, making the normal windows usb disconnect sound every time it does.
Jeronimo Fuerte 38,245 Reputation points Independent Advisor

2026-04-08T03:34:18.1333333+00:00

Please, be sure you installed the full motherboard/chipset + USB controller package directly from the PC or motherboard manufacturer support page, not only the dongle driver, then in Windows disable USB selective suspend for the dongle if available in properties and clear the power-saving option on the USB Root Hub/Generic SuperSpeed Hub entries so Windows stops power-cycling the port.

If the adapter remains stable only in USB 2.0 after that, the most likely conclusion is a Windows 11 compatibility issue specific to that Realtek 8851BU adapter or its vendor implementation, in which the bestl fix is to contact Ugreen/Realtek

Share via

USB 3.0 issues on windows 11

1 answer

Your answer