cannot connect to ethernet after ventura upgrade

Under network settings the ethernet shows the red circle and "not connected".

• IT has verified there are no firewall settings that would prevent a physical ethernet connection.

To test this:

• We unplugged the ethernet cable from the Ventura Upgraded iMac to a non-ventura upgraded iMac and this non-ventura upgraded iMac connected to the ethernet and internet.
• After putting the ethernet cable back to the Ventrura upgraded iMac, the ethernet still shows not connected.
• This means the physical ethernet cable and router is working, and the Ventura upgrade is the issue.

Under network settings it shows the red circle and not connected. The mac address has not changed i will reach out to them to see if they register something with the OS. I would have expected a "connected" circle, but then the router blocks the port if the Mac Address and whatever else doesn't match as expected therefore the internet fails. I do not believe they turn off the port automatically if it cannot verify the credentials, because we would have had this happen any time some one plugs in a device to the "wrong" port.