This requires the device to be connected to the internet often which isn’t always the case. If the device is the gateway you now have a circular dependency (one

This requires the device to be connected to the internet often which isn’t always the case. If the device is the gateway you now have a circular dependency (one that will only cause problems rarely but it’s still there.) As long as http still works it’s fine, I think a security warning about it is probably a good thing, but there definitely are places where “just use let’s encrypt” isn’t an acceptable solution.