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DAX Driver Error

Flex-6400M, Windows 11

I don't like doing this, but since I haven't received an answer or solution in six months, I'm trying again.

When I start DAX, I get the following error message.

Screenshot 2026-02-26 112201.png

I can't find the cause. The help desk couldn't answer it either...

Daniel

HB9DDS

Screenshot 2026-02-26 113308.png

Comments

  • David Decoons, wo2x
    David Decoons, wo2x Member, Super Elmer Moderator

    usually that happens when the computer tries to grab one of the DAX drivers as a default record or playback device.

    Try setting the TS480 as default record device and the high definition audio device as default playback device. or if you have a USB PC mic, plug that in and set to default record device.

    Reboot then follow this procedure to reinstall DAX drivers.
    https://helpdesk.flexradio.com/hc/en-us/articles/41413843097883-How-to-Manually-Reinstall-the-DAX-Drivers

    73 Dave wo2x

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin

    This is a fixable problem. If you open a support ticket they should be able to sort you out.

  • HB9DDS
    HB9DDS Member ✭✭
    edited 1:43PM

    @ Dave, W02X

    https://helpdesk.flexradio.com/hc/en-us/articles/41413843097883-How-to-Manually-Reinstall-the-DAX-Drivers

    I've done this so many times. Also this afternoon (again). No success

    Screenshot 2026-03-01 143437.png

    Oh yes, I opened a ticket on October 28, 2025. But they had no solution and gave up...

    I reinstalled SmartSDR on a new Windows 11 partition. It works perfectly there.But what's causing the problem?

    Daniel

    HB9DDS

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