I've been trying all day to get the Xbox App and the games I paid for to work online, like they did for the past 18 months.
So far I have tried all the Teredo, Firewall, Router & Services fixes you can find on Google, Reddit etc, all to no avail.
Xbox Support said it appears to be an emerging fault, however I see no mention of it here or on the status page.
What can I do in this situation?
Thanks to anyone with advice that isn't "reset IP helper lol".