Warzone Error Code Diver: How to Fix
By Cailey Ives

Warzone error code diver is an annoying bug that some players have been running into when starting up their game. Here is how to fix the error.
With the demand for support higher than anticipated, we haven't been able to answer questions as quickly as we would like. If your game is up to date but you’re still experiencing something that’s not listed as a known issue, please reach out to us again. https://t.co/aaAXrgzaCr
— Activision Support (@ATVIAssist) March 31, 2020
Warzone Error Code Diver: How to Fix
Error code diver appears in both Call of Duty: Modern Warfare and Warzone but has yet to be addressed by Activision. Fortunately, there have been a few reported solutions from the Call of Duty community.
The first solution is to restart your router. Restarting your router is a standard solution and should always be one of the first things you do if you have already shut down your game and reset your console. If you are a PC user, try turning off your Windows Firewall. Remember to turn it back on once you have finished playing Call of Duty.
If you are still having issues and all else has failed, you should delete Call of Duty and try reinstalling it again. Because of the game's size and installation time, this should be a last resort, especially if you have slower internet. You can also try Activision Support for up to date information on server maintenance and weekly patch updates. Both Infinity Ward and Activision post about updates and widespread errors from the community, so be on the lookout for your error code.