VNC is not allowed to change network at boot

I installed vnc server, and I enable it with systemctl. At Boot a message appears
"System policy prevents control of network connections**
An application is attempting to perform an action that requires privileges. Authentication is required to perform this action. "
I saw that request come from Networkmanager.
How can I start VNC at boot without this request?

Welcome to the forum!

First of all, how did you install it, what version of VNC server did you use and why do you need it to enable at boot?