Mout M4 Input drops?

[xxaphexx]

I recently bought a XLR Mic for my MOTU M4 and everything worked fine for the first minutes.

Then the input just drops to 0 and comes back after some seconds to minutes...

I feel like the firmware is faulty? I'm o the latest 2.02. Is there a way to downgrade the firmware, for testing purposes?


I made sure to exchange the mic, tested it on a different pc , switched inputs, also tried USB-C to USB-C, different XLR-Cables.

Doesn't matter it just drops randomly.

I guess I have to return/exchange the unit? I'm just curious if anyone else might have experienced this?

[mikehalloran]

You don’t say how you are powering the M4. Bus owner, yes, but what’s the source? Is it battery from your PC, a desktop, a powered UBB hub?

If the unit is not at fault, that’s really the only logical source of the problem. If your PC is a notebook, you may require a powered hub in the chain.