Server Connection Error (Call of Duty Black Ops: Cold War)

I decided to share such a problem or a similar one, I decided to play Call of Duty Black Ops Cold War and I got such an error, I tried all over the Internet and nothing helped with administrator permission. The problem was banal The firewall did not give permission.

We go to the Control Panel

Open the Windows Defender Firewall

Open the line on the left "Allow interaction with applications or a component of the Windows Defender Firewall"

We look for the Battle net Launcher and check the boxes

And if it is not there, like mine, then add it, open the line "Allow other applications"

Click on Browse

Of course to you need to know where the Battle net is installed and add it and check the boxes

All this is done once, then I tried to remove the daws, rebooted everything worked.