Google Nest Community

I have 3 Google homes and two screens one that's big and ones that's small. All of my devices no longer work. It started yesterday. Internet works fine at my house but no more devices. I have the newest Google wifi hub. Please help. Can't use devices

When enabling down time how can I also disable the broadcast feature? Reason I am asking is that my kids use broadcast since downtime is enabled and would love to also have a downtime for broadcast