It's been a year now Warzone landed as Call of Duty's Battle Royale mode, first on Modern Warfare then Black ops cold war. Despite the efforts made by Activision to avoid bugs and problems, some problems can sometimes return, whether on consoles (PS4 and PS5, Xbox or PC).
This is particularly the case of the mysterious error codes 3136 and 2048 which appears when logging in and searching for the online profile on Warzone and Cold War.
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How to solve connection problems and error codes 3136 and 2048 on Warzone and Cold War?
It is difficult to know what error codes 3136 and 2048 really entail. We simply know that this is due to the connection to Activision's online servers and the game fails to retrieve the player profile. However, there is no no real solution. The best thing to do is thereforenotify Activision via support on the site or on Twitter (source). The publisher should therefore quickly seek a solution to resolve the problem.
To stay informed about various bugs and issues on Warzone and Call of Duty: Black Ops Cold War feel free to follow the Activision Support account on Twitter. A website is also provided to help players in the event of connection or other problems (source).