Thank you guys for engaging. Here is the text under the "Advanced" tab:
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files.jriver-cdn.com uses encryption to protect your information. When Microsoft Edge tried to connect to files.jriver-cdn.com this time, the website sent back unusual and incorrect credentials. This may happen when an attacker is trying to pretend to be files.jriver-cdn.com, or a WiFi sign-in screen has interrupted the connection. Your information is still secure because Microsoft Edge stopped the connection before any data was exchanged.
You can't visit files.jriver-cdn.com at the moment because the website uses HSTS. Network errors and attacks are usually temporary, so this page will probably work later.
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To answer the Awesome Donkey: I have checked, and synced and put on automatic time zone, which wasn't enabled originally. The time was correct to the second to begin with.
However, I have no idea how to change DNS, nor do I actually know what it is. Dynamic Network Service, perhaps, in which case it's somewhere in my brain
UPDATE: I have now tried to rip the same CD using another computer. It's slightly older and a bit less butch, but otherwise everything's the same. Apart from that one being cabled to the router, not by wifi. And I get all the same problems and messages. So it's not the computer. Is something wrong with my fiber-whashamacallems, bobbins, gizmos?
To clarify, this has never happened before on any of my computers. Neither do I have anything new installed, soft- nor hardware since I successfully ripped a CD last. Apart from a new TV, but....