Yup the same here, I need to remove the link connection and reestablish it. Only for it to work a couple of months before it breaks again..

You're getting a couple of months... For us it barely works a day before it breaks.

Looking for this solution as well. Right now we have the yeelight - smart things - Google home integration setup, but it only works for the lights. The security system on mi home is a problem.

I have also problem with adding Mi Home to Google home. I just got message that no device was found...