If you’re trying to sign into Xbox Live at the moment you may notice that you’re having trouble, and that’s because the service is facing problems on both Xbox One and Xbox 360. The main issue is actually signing in to the service, with the status page currently showing online gaming as working fine.
Are you having connection issues with Xbox Live? Our team is already engaged and investigating right now and we are trying to get it fixed ASAP! Thanks for your patience while we work.
The root of the problem is being investigated, and should hopefully be fixed in a short period of time. There are also issues with downloading purchased content on both Microsoft consoles too, with the main one appearing to be Call Of Duty: Advanced Warfare’s Havoc DLC, mainly Exo Zombies. If you are having problems with that then you will need to download Compatibility Pack 1 once the service is resumed.
Source: Xbox Support