Hello,
So, it's a DNS issue.. It's strange that only Edge is impacted.
We'll remove the cached files from Edge, and then reset the network configuration if needed :
- Launch Edge,
 - Click on the top-right "..." to show the menu.
 - Settings
 - Delete navigation data - choose the elements to remove
 - Check all, except "Passwords"
 - Delete
 
Quit Edge, restart it : does it work ?
If you still get the sa...