If your MQA indication does not light up, check that every component (music server software, transport, etc.) before the MQA DAC is NOT doing anything that destroys the bit-perfect nature: digital volume, format conversion (*), resampling, DSP processing, etc. And verify that your DAC is indeed running the MQA-certified version of firmware.
* note: MQA should survive lossless conversion from one format to another.