Hi William,
There maybe settings on your router that needs to be tweaked in order to resolve the issue about msftconnecttest.com message. You may refer to the helpful post made by RatindraSharma from the link below dated 9/15/2017. The link has been marked as answer by Community members who had the same issue. This solution can also be helpful in your current concern.
Let us know the result for us to help you further.
Regards.