AppleTV not turning on from Standby

Hi,

My brand new AppleTV 4K seems to have problems waking up from Szandby. It has happened several times now. I turn the ATV off by sending it to Standby. Next time I want to wake it with the Remote, it is completely unresponsive. Only thing thst helps is pulling the plug and then plugging it back in. This seems to be happening about 50% of the time, but I've only had it a few days so I don't have reliable statistics. Once it's running, or on those occasions where is starts from Standby everything seems to be OK.

Seems like it falls into some kind of "Sleep of Death"

Any ideas what is wrong and how to fix it?

Thanks!