I cannot control digirig volume level

i have just migrated to a brand new installation of Windows 11 , i have installed all drivers and configured my digirig for cat and audio with the ft-857. All works fine except i cannot control the volume of “microphone usb audio” of the digirig. I have given access to the audio at all the programs, but the slidebar of the input level does nothing. Even if i set the level at zero, the audio level to vara FM , the program i use, is too high and i loose packets. Any solution?

I have seen this when I left AGC set in the Windows audio device manager as seen via mmsys.cpl.

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