My issue seems to be, I do have two HomePod minis grouped as a stereo pair and one keeps saying, at least twice a week, that it is having trouble connecting to the internet but the home app says it is having trouble connecting to the iCloud account, since the other Homepod Mini is connected to the internet just fine it isn't an issue of two different networks, one on Homepod Mini and one on the iPhone, so to fix this I have to bring my iPhone next to the Homepod Mini that says it cannot connect to internet and then restart that Homepod Mini and then it will connect to the internet, It is a nuisance to have to do this continually, I just restart it once a day and that helps.