Reguarly need to manually reboot N330

Hi

I own an N330 Power node, which I am somewhat happy about, the sound is great!!

But I have an issue right now where i have to unplug&plug the device regularly (every 5 days) because it freezes up and becomes completely unresponsive, both on the touch interface directly on the device and via det IOS app I am using.

I have connected it directly to the ethernet port of my network switch.

Is this a known issue and what do you suggest?