Roy RainfordWhen I boot up my iMac, or waken it up, a pop up appears on the desktop saying, "No internet, needs to connect to the internet in order to work. Please connect and try again." I click OK on the message box, it disappears and I proceed to use the internet or I can use the internet without clicking off the message! No apps are open when the message appears. There is a small icon, which I don't recognise, in the message box. I don't know how to show the icon here but it's similar to the App Store icon. This message started popping up about a week ago but I can't say what action I took at the time. I am using OS 10.13.6 High Sierra.