1- Remove your Realtek driver and Nahimic. [reboot]
2- Install Nahimic 1 and realtek driver here
don't forget first install Realtek driver & don't update Realtek driver from windows update etc.
if you have a trouble after a while check realtek driver version and roll back updated driver.
Maybe newer msi models work well with Nahimic 2 and 2+ but old msi models ..
its work ge72 6qf - win10 16299.64 - firefox quantum(57)