Hi, I found "an answer" or "the answer". I restarted the lap-top, no good, I rebooted the lap-top and the icon reappeared on its own. Because the lap-top is a Sony Vaio, it has its own connectivity app, it's called 'Vaio Smart Network'. It displays 'via the green icon with horizontal white arrows' the staus of the internet and/or bluetooth connections. Don't ask me why it disappeared, that's why I was asking for help. Anyway, it's back now.
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