Thank you, i think you are on the right track, The devices are not connected to cloud. But- the link http://shelly-ip does not work. Is it same as https://my.shelly.cloud/? But I can't see how to disable and enable Cloud there?
Bought 4 Shelly Plug S. They are connected to my wifi network with IP in the router. They are sometimes online when I am on the same wifi but never from outside. If i click on the device in the IOS app it says "your device is not conected to the cloud"