This is most likely the cause why the USB devices randomly disconnect and reconnect. If you are using a USB HUB try to plug in the USB devices directly to the computer. 1. USB port disconnecting external drives – identify the USB Mass Storage Device. 3. Scroll down again until reaching the USB Mass Storage Device – right click it and select Properties. Important: Despite what other guides say, do not touch other options since they will have no effect for this particular scenario. 4. Click on Power Management. 5. Right-click on the USB root hub option and select Properties. Select the power management tab, uncheck the box next to “allow the computer to disable the USB ports,” and click OK. Repeat the process for other USB root hub options. Reboot your PC. For laptops, check the power supply. If changing the Power Output and turning off "Allow the computer to turn off this device to save power" does not work. Access Device Manager > System Devices > Thunderbolt (TM) Controller - 15D9 > Update driver. After updating and getting prompt, select "Always Connect". Now it is working just fine. Reinstall the device per the manufacturer instructions. Other Device: The USB ports are working but device drivers need to be installed. To correct this problem: Disconnect the USB device, and wait 20 seconds. Install the drivers per the manufacturer instructions. Device Name is shown: USB ports and basic plug-and-play are working correctly. What to Do If Your USB Port Stops Working 1. Narrow Down the Problem. If your computer has more than one USB port, try plugging your peripheral into a different 2. Make Sure You Have the Right Port. Are you trying to charge your laptop through a USB Type-C port? Some manufacturers 3. Clean Out If your keyboard requires two usb ports and the mb's power supply to those ports is weak yes it can cause stability issues. USB disconnects are a well known problem with the latest am4 chipsets and AGESA 1.2.0.7 contains their solution to that and the persistent fTPM issues they've had since AGESA 1.2.0.4. 6gcCwX.

laptop usb port keeps disconnecting