Getting your master key
Introduction
The Call of Duty: Black Ops (T5) servers must have an active server key defined. If they do not, you won’t be able to start your server successfully.
Reading time: 5min
Prerequisites / Disclaimers
In order to complete this procedure you must:
Have access to Black Ops and Plutonium client
Have your Black Ops dedicated server turned off
An active Plutonium account
Purpose
To authenticate your dedicated server to Plutonium’s official master server so that your server can start successfully.
Procedure
You can click ‘Learn more’ on each step if you’re not sure how to complete it.
Stop your server if it is running - Learn more
Open a new tab in your web browser and to go: https://platform.plutonium.pw/serverkeys
Login using your Plutonium account

Example of the logon screen
You may need to re-enter the url from step 2 if it does not redirect you
Create a server key from the “My server keys” page

Example my server keys page
Enter your details desired and click “Create” (Make sure you pick T5MP for multiplayer or T5SP for zombies)

Creating your key
Hover your mouse over the key inside the
Keycolumn to reveal your keyCopy it and then return back to the Game Panel
Navigate to the Startup Parameters - Learn more
Locate the Master Server Key parameter
Paste your key into this by replacing the placeholder - Learn more
Tip: Clicking away after entering the key will save it.

Change the default parameter
Start your server
You should see this return in the console if the key is correct:

Example of successful heartbeat
Load up your game and enjoy! ⭐
Troubleshooting
My server is not starting and I can’t join it
If your server is showing you this:

It means you have either not provided your master server key, or it may:
Be incorrect, copy it from https://platform.plutonium.pw/serverkeys again, stop/start your server
Become banned, you may need to reach out to Plutonium’s team via Discord to get unbanned
Rapid changes, if you recently used your key on another IP address or host, you need to wait or make a new one
End
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