Windows 10: USB to UART driver problem

Discus and support USB to UART driver problem in Windows 10 Gaming to solve the problem; USB to UART driver problem since upgrading to windows11. i used silicon labs cp210x before. does not work now.... Discussion in 'Windows 10 Gaming' started by alex mckeeman, Jan 14, 2023.

  1. ALEX MCKEEMAN
    alex mckeeman Win User

    USB to UART driver problem


    USB to UART driver problem since upgrading to windows11. i used silicon labs cp210x before. does not work now.

    :)
     
    alex mckeeman, Jan 14, 2023
    #1
  2. MUSTBOB
    MustBob Win User

    USB to UART driver problem

    Since upgrading to Win 10 from Win7 I can no longer us a Data Acquisition device that uses a USB to UART controller. Nothing has changed hardware wise. Ran fine before the upgrade and still runs fine on my desktop running Win 7. I have already sent an email
    to the vendor. Doubtful I will get a reply as they are a small company in Japan.

    I have tried installing generic Windows USB to UART drivers re-installed the vendors driver, run the program in Win 7 compatibility mode. Device Manager says everything with the COM port is running fine. Still get an error when initiating the device.

    I just looked at the Driver File Versions in Device Manager and both the usbser.sys and serenum.sys are different different than on my Win 7 machine. Pretty sure this is the problem. So how can I revert to the older file version? Or does someone have another
    suggestion?
     
    MustBob, Jan 14, 2023
    #2
  3. MUSTBOB
    MustBob Win User
    USB to UART driver problem

    1. Computer is a Toshiba Satellite Laptop Model no. PSK1EC 03E00Q

    2. The Data logger is very primitive. All I get is "Error" when I try to log. The USB - UART chip is a Alcor Micro AU9720.

    3. There have been no hardware changes on either end since Win10 was installed.

    Turns out I figured out the problem and a fix. The issue is with the usbser.sys driver. The file version is different than what is on Win 7. So I copied the file from Win 7, changed permissions to allow unsigned drivers, and copied the file into Windows/system32/drivers
    directory and presto it is working again. So something has changed in the new Win10 file version.

    I'll check out the other suggestions too.
     
    MustBob, Jan 14, 2023
    #3
  4. PHILMOORE3
    philmoore3 Win User

    USB to UART driver problem

    usb to uart bridge controller driver cp2102,

    need a usb to uart bridge controller driver cp2102, says it's not installed for garmin gps device
     
    philmoore3, Jan 14, 2023
    #4
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USB to UART driver problem

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