My iMac is not connecting to internet.
I just had a Verizon technician stop by and he set me up with a new router with faster speed.my wifi and internet works on my phone but not my Mac he said it could be some kind of software that is causing the issue.when I hit safari it tries to load but then it disappears,telling me that a problem repeatedly occurred with “https/ www.yahoo. come. my Mac is a macOS High Sierra version 21.5 inch,late 2013 .I don’t know what to do I tried shutting it down and restarting it, something is preventing me from accessing the apps like I said I do have internet connection it just won’t load up . What to do
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