based on what you say1. reset all the devices2. knock knock a bit the
device ( sometimes works ) be soft...3. you say does volume, but not the
other thing, then, dissarm it and clean it, how many years it has? for
temperature climate issues it can ha...
two things, due you have a problem i had1. update your android version,
if you cant2. update your firmware router, or try another wifi3. i dont
know what else suggest you, i had that problem, for a year i though the
problem was chromecast, but not, w...
Did you do a hardware reset and the problem still remains??you can
always use the USB direct to a tv USB port too, preferably a blue 3.0
port i guessi dont know what else to tell you based on all what you
tested.
maybe you have to do a hotspot mirror simulating it to pass as a wifi
with a router in repeater mode.then google will connect to that
chromecast, believing that is a normal wifi, and not a hotspotthats what
you want?
i don't know if this helps you but1. do a hardware reset to your
chromecast, search it in google2. if 1 didnt work, try another wifi, or
reset your wifi conection3. if 1 and 2 doesnt work, try through another
phone ( you told me all your familly use ...