Halo 5 wont sync my profile cant play multiplayer

Hi anyone
So been having problems trying to sync my profile on halo 5. Everytime i open halo 5 it comes up with an error message saying “Cant sync profile and cant connect to halo sever”. I try to enter multiplayer and still cant connect and say it cant sync my profile, i have tryed to reset and reinstall the game but still it does not work, Does anyone know how i could fix this please??

Have a look at this video solution.

This one too.

Here’s a link to Microsofts page regarding the issue.