I remember this issue years ago with Xbox One's and it used to happen on all routers and ISP's.... was more a bug of the Xbox, nothing actually changed and nothing stopped working as it should.
If I've helped let me know 🙂
10 year's managing 9 Virgin Media accounts, and things never got any better, closed last 4 accounts since January 2021 :L
I give 'my' experience to help where possible.