Homekit Home app Homekit no No Response

If your HomeKit or Matter accessory isn't responding in the Home app

If accessories from one manufacturer aren't responding

https://support.apple.com/en-us/102056

If accessories from several manufacturers aren't responding

Every device says "No Response" except Apple devices

Every device says "No Response" except Apple devices (homepods/appleTvs). Everything else whether connected directly to HomeKit through wifi or through a hub (Hue) is unresponsive.