Windows 10: Windows 11 USB COM port

Running Windows 11 which performed an update yesterday. I'm using USB devices having an FTDI chip. Windows no longer assigns a COM port and says there is no driver. I've re-installed the driver directly from FTDI but the problem remains. I've tried several physical ports, cables and devices. No luck, USB ports are still not assigned a COM # and therefore don't work. Anyone seen this problem and solved it?

:)

 

USB Port Oddities


Ok, let's see it with pictures step-by-step. First right-click on the USB device and select Update driver software:





Then select Browse my computer for driver software (LAST option) :





The select Let me pick from a list of device drivers on my computer (LAST option) :





Then select the standard driver from the list and click next:





Click next/OK as required to complete installation. Repeat the steps for all Intel USB devices. Finally click on each USB root device and press DEL to delete it, reply YES when asked. After deleting all USB root devices restart the computer.

I hope this is detailed enough...

 

USB Ports

Hi Homer,

We'd like to ask a few questions to help us isolate this problem.

• Have you tried connecting your device tracker to a different USB port on your computer?
• If so, was it detected?
• Did you receive any error messages?

To address this issue, we suggest that you follow the troubleshooting steps shared by Praveen Venogupal on this

link.

Let us know how it goes.

Regards.

 

USB ports

Hi Frank,

Inserting and removing a USB device repeatedly may cause the USB port to stop responding. When the port is in this state, it no longer recognizes any USB device, and the USB device will not work.

Here are few things that you can do to resolve the issue:

Use Device Manager to scan for hardware changes. After your computer scans for hardware changes, it might recognize the USB device that is connected to the USB port so that you can use the device.

To scan for hardware changes, follow these steps:

• Click Start, and then click Run.
  
  Note If you are running Windows Vista, click Start, and then use the Start Search box.
• Type devmgmt.msc, and then click OK. Device Manager opens.
• In Device Manager, click your computer so that it is highlighted.
• Click Action, and then click Scan for hardware changes.
• Check the USB device to see whether it is working.

Turn off Allow the computer to turn off this device to save power.

• In the Device Manager dialog box, expand Universal Serial Bus controllers, right-click USB Root Hub, and then click Properties.
• In the USB Root Hub Properties dialog box, click the Power Management tab. Uncheck the
  Allow the computer to turn off this device to save power
  box.
  

Let us know how it goes after performing the suggested troubleshooting steps.