Are you getting this after power cycling your console? If so, try clearing the alternate MAC address with these steps:
Go to your Xbox One Settings (Just press Start, then click Settings)
Go to "Network", then "Advanced Network Settings"
Click on "Alternate MAC Address", and then click "Clear"
Try playing again and let me know if you continue to have the same problem.
I'm still here for a couple of hours. I just have a lot of different messages and forums to monitor so it can take a bit to respond.