Thank you for the great app!
I have installed Youmap Chromecast receiver into my Android settop box. where the result is strange. When I enable the Youmap receiver, all of my phone can't find it. After rebooting the router, my Nexus 4 can find the receiver only when the Android settop box connected to router through LAN cable. If the Android settop box is connected to router wirelessly, none of my phone could search it.
In the above successful case, the Nexus 4 can find and cast the screen to the Android settop box (procedure: Setting > Display > Cast screen > Select YouMAP (XXXX)). Although Nexus 4 and my Android settop box support Miracast, I'm pretty sure Nexus 4 is connected to the settop box by chromecast as I didn't enable Wireless Display and the search result clearly stated YouMap. On the other hand, the cast button didn't appear in Youtube app. Moreover, I tried it on my Moto G 2014 and it didn't find the receiver (procedure: Setting > Display > Cast screen).
My Android settop box is MiBox 1S with Amlogic 8726-MX running Android 4.4
Nexus 4 running stock Android 4.4
Moto G 2014 running stock Android 5.0
D-link DIR-655 Wireless N router