Updated Apple Account password not opening Mac Air

"Updated Apple Account password not opening Mac Air: I have updated my old Apple Account password but it doesn't open my new Mac Air laptop..."

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Apple Account Password:

Your Apple Account password is not the User Password of your Mac User Account (and you should never make them the same, for security purposes). So, are you looking to log into your Apple Account on this Mac? Or are you looking to log into your User Account on this Mac?

Delete All VPNs:

1. Go to: System Settings
2. Click: Network (on left pane)
3. Click: VPN (on right pane)
4. Click: the white-encircled "i" to the far-right end of the listed VPN
5. Click: Remove Configuration... button
6. Click: Remove button (to confirm)

Forgotten Mac Password:

Go Here: If you Forgot your Mac Login Password - Apple Support