It is hard to say what the issue is, as it could be any number of things blocking the connection. Since this is a new PC, you may consider just resetting it. This will reinstall Windows and restore the computer to it’s original state. If it does not work at that point you will want to reach out to the manufacturer or place or purchase for assistance.
https://support.microsoft.com/en-us/help/4026528/windows-10-reset-or-reinstall