App is useless, non-intuitive, confusing and then I upgraded it, and now all I have is an endless black screen. Good going, bozos! I have used Linksys products for decades but will not spend one more cent on their products. I wonder if they are working with SONOS, an equally frustrating system. Velop? More like ker-plop, which is the sound I will be hearing when I toss this garbage into the toilet.