Hey Guys i finally got my Mi Box 4 today and i already have a hugeeee issue regarding internet its just really on off for me because in some areas it seems to work "ok" (on the play store) but on youtube for example it just either gives me an internet connection Error or if i manage to get into youtube the videos buffer like hell.
Im running Android 8.1
Same problem here. I bought mine in Christmas and never found a solution for this. I've bought this adapter to connect the box via ethernet and everything is fine now, but yeah WIFI is horrible in the same apps and situations that you describes and never found a viable solution. This is the adapter, works great in the mi box Ugreen USB Hub Ethernet
My Mi Box has been nothing but trash. Constant wifi issues, what I did find that fix it was disable google in system apps. Go into settings then scroll down to apps then in system apps find google and disable it.
I have no idea if that's why my box started working or if it was just luck, I read that solution on this forum. Give it a shot.
Does it have any available updates??