Mine is solved now.Found out my router has more than 1 channel and 2 of
them active at the same time.1 channel for 2,4 Ghz Freq and the other
channel for 5 GHz Freq.I turn of the 5 GHz one and everything works
normal.
Wow ..same problem here.After I switch my internet provider...only 1
detected out of 3..and random device also...sometime only Chromecast A
detected, othere time only Chromecast C, etc. If I switch to my old
internet provider using its own router...a...
