Unable to join server since 1.2.5.52 update

Since the release of 1.2.5 I have been unable to join a friends server being hosted on and xbox one. My friend is currently on the same update listed on my version (1.2.6.2) and has also been unable to join any worlds hosted by me. Issue started around the 29th-30th of Nov with issues of being unable to sync accounts. Tested on both my xbox one and win 10 pc with same results.