Yeah I certainly won't be going back to them. Shame as I like the phone but I'm currently feeling robbed!
I will try removing the case, thank you. But I used the basic silicon one that came with it to begin with and there were issues then. I've tried a few WiFi analysis apps and can't identify any issues with the connection. Leads me to think it's a bug/hardware issue. Keep reading bad stuff about their customer service, not that they will care much but I won't be going near them again!
sounds like time to get a new phone, and not a xiaomi one.
Yeah I'm going round in circles with them at the moment, constantly being told it's been escalated and reported to the support team. I think they are hoping I'll just go away.
Two 8t phones in our house and chrome locks on both which is annoying. Just factory reset mine as crashing all the time. Had no WiFi problems but I know some cases can effect WiFi, Bluetooth ect so try taking out the case to test l. Also clearing the WiFi account and entering again can also fix both WiFi connections, however its definitely a bug ridden os imo. Also try a WiFi analysing app to see what's going on