Youngsaavy, I definitely want to ensure your Galaxy S8 rings 100 percent of the time and that you don't miss any calls. When your phone sets the ringer to silent, are you doing anything specific with your device? Do you recall installing or updating any new applications when this became an issue?
Please rerference the link provided to check your Do Not Distrurb Settings to ensure the feature is not on. http://spr.ly/6583DnIFS
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