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techi_guy's avatar
techi_guy
Copper Contributor
Jun 04, 2026

driver version on com port is not same as USB port after update

hi everybody,

i am using printer that i have updated its usb to serial driver but recently find out that the version on com port is not equal on usb port on device manager

so how to fix this difference

 

2 Replies

  • NicholasLewis's avatar
    NicholasLewis
    Iron Contributor
    Jun 11, 2026

    Some USB-to-Serial adapters have a separate firmware update that must be applied before the driver will fully match. 

  • Archer86Ho's avatar
    Archer86Ho
    Copper Contributor
    Jun 08, 2026

    This mismatch in COM port numbers is actually a common issue that happens when Windows assigns your printer to a different COM port than your software expects. The good news is that you can easily force Windows to use the correct port number in just a few clicks.