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The reason why is this happening is that your DNS Server that you’re using is not yet fetching the newly assigned server domain for the Call of Duty servers. Other user will also get an from the Sign In screen that says “Connection to the Blizzard game server has been lost. Even restarting the game and the PC several times won’t fix the problem.
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After the huge update of Infinity Wards for the base game Call of Duty Modern Warfare and its Battle Royale, Warzone, a lot of players got stuck on the loading screen, particulary when it says “Connecting to Online Services”.
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