Updated at 8:00 a.m. on March 11: Xbox Live’s core services are back up and running.

Microsoft is looking to solve a problem that is keeping people from enjoying online games on the Xbox 360.

Xbox Live on Xbox 360 is down intermittently for a number of people. Microsoft has acknowledged the problem on its status page, and it says it is working to get everything functioning properly. This outage is preventing many people from logging into their Xbox Live accounts. Even when people to get online, they are experiencing matchmaking problems. This will keep gamers from playing online in releases like Call of Duty: Advanced Warfare or FIFA 15.

“Microsoft is aware of an issue affecting access to some Xbox 360 services,” a Microsoft spokesperson told GamesBeat. “We are working to restore full access to these services as quickly as possible.”

A new update went live for Xbox One today that adds some new features. We’ve reached out to Microsoft to ask if this is related to today’s problems.

Xbox Live has had regular issues for months. In December, Call of Duty players reported issues downloading certain items that they had purchased. That problem took weeks to fix. Around Christmas, a cyberattack brought down both Xbox Live and PlayStation Network. In recent days, Xbox 360 owners have had more issues downloading themes and pictures for their profiles.

The errors range from minor to catastrophic and they often affect both Xbox 360 and Xbox One. Today’s outage, at least for now, is limited to the older system.