iMac reset to factory setting

Hello sonymariano,

Thanks for reaching out in Apple Support Communities. It sounds like you want to format your iMac and reset to factory settings. We're happy to help. A backup is recommended before you reset your Mac to factory settings to secure your data.

Check out the following support articles:

Back up your Mac

How to erase your Intel-based Mac

What to do before you sell, give away, or trade in your Mac

Cheers!

Hello sonymariano,

Thanks for the additional information and for contacting us back.

The error you're seeing is commonly related to local network issues affecting the connection to Apple's server. This may be related to network firewall, proxy server, DHCP, or DNS. Make sure you have a reliable network connection.

The resource below can help:

Use macOS Recovery on an Intel-based Mac

If the steps above don't help, reach out for additional support here: Get Support

Take care.