Got a gen 3 sub for use with the arc. Sub would not output sound after connecting via WiFi. Arc used an Ethernet cable. To try and fix the issue, I tried turning the arc off and back on in order to set it up via WiFi. The arc turned back on but keeps blinking white light. The app can not detect the arc. i now have a non working arc and a sub that I could not get sound out from . Any ideas ?