This is a great robot but it goes offline at least once a week and it takes several (5-10) tries to get it to reconnect. The robot WIFI just doesn't show up in my WIFI list. It sits directly beside a WIFI repeater so signal strength is not the problem. I'm using the Mi Home App so I can connect to my Home Assistant. I would just like to know why it keeps disconnecting. I have emailed via the app several times with no response. On advice of things I've read, I've tried changing my region to both Germany and Singapore, but then my robot doesn't even show up at all until I switch back to US. Please help.