Activision has now restored online services for 'Call of Duty: Black Ops Cold War', 'Modern Warfare' and 'Warzone'.
The company has confirmed everything is back in working order after the games were hit by "connectivity issues" on Tuesday (12.01.21).
The company's support team tweeted: "Online services have been restored for Black Ops Cold War, Warzone and Modern Warfare.
"We appreciate your patience".
The services outages impacted each of the three titles, and affected every platform, including Xbox Live, Nintendo, PSN, Battle.net, Steam and Epic Games.
Before getting things back on track, Activision had directed users to its Online Services status tracker, which recommended restarting your router, using a wired connection, checking connection speed and limiting applications that take up bandwidth to correct normal service issues.
However, they added: "We are actively investigating connectivity issues for Black Ops Cold War, Warzone and Modern Warfare.
"Please star tuned for updates."
The company hasn't revealed the cause of the outage.
