Xiaomi mi box s 3rd gen wifi problem

[Kralj3gs]

I bought a new Xiaomi Mi Box with the 3rd gen latest version and after 24 hours I had problems with WiFi, it simply disconnected and wouldn't connect again. I tried some methods I found online to turn off the automatic time, factory reset and nothing helped and resetting the router itself didn't help.
Has anyone had a similar problem and solved it?

 

[Lef1337]

I have exactly the same problem my router is zyxel but I only have the problem with the specific device I try change the wifi channel disable enable 2.4 or 5 band wifi disconnects alot and and does reconnect automatically