Please help to send us a feedback in WiiM Home app. Our engineers will look at the device log and help resolve this issue shortly. Meanwhile, can you please send us your order number and shipping address? If there's defective unit, we'll send you a replacement.
I had the same exact issue. I hadn't used the unit in several weeks, went to power it on and could not sync with any streaming services. As soon as I went to sync with streaming service, it would disappear from the network. I would restart the unit and it would appear on the network again, but would disappear as soon as I would try to play a song. This went on for a couple days. Now the unit no longer powers on at all.
Is there a way to send feedback through the app if the unit no longer powers on?