Hello!
Thank you for making a bug report!
Because this is a fresh install, I believe this is a duplicate issue. You can see the solution I posted here: Can't connect to the servers - #2 by DarkDove3
If you believe this doesn’t match up with what you are experiencing, please feel free to let us know and we’ll dive more into this. Additionally, the #Tech_support channel on the discord server “Duelist Unite” can also be used to help get you sorted out.
If this is the answer, please mark this as the solution and the thread will close 24 hours after the last post.
If you find anything else you believe is a bug, please feel free to make a new report! We appreciate your help making this the best we can.