@TP-Link q Were you able to reproduce the same issue every time after the smartphone reboot/restarted within one hour? a maybe not exactly one hour, but somewhere around the hourmark, yes. multiple...

Currently using a deco m4 mesh network and it works fine except for the chromecast. When i reboot my network, or my phone, i can see the cromecast and the smart tv on my phone and can start to cast....