Hi Dexter. I'm Greg, 10 years awarded Windows MVP specializing in installation, performance, troubleshooting and activation, here to help you.
Right click the Network icon in System Tray at the right end of the task bar, choose Troubleshoot Problems, then "I'm trying to reach a specific website" and copy/paste the exact same URL you're trying to access to trace why it can't connect.
For error 400 Bad Request in Edge try these fixes:
https://www.lifewire.com/how-to-fix-a-400-bad-r...
https://www.itpro.com/infrastructure/network-in...
https://wethegeek.com/how-to-fix-http-400-bad-r...
https://www.youtube.com/watch?v=BSxfNIbQ_NA
I hope this helps. Feel free to ask any questions. Based on the results you post back I may have other suggestions if necessary.
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