About how long does it take to transfer data from my iPhone 12 to a new 15Pro Max?
It has been trying to reconnect for quite some time...any helpful hints?
Windows, Windows 6
Are you following this guidance from Apple→Transfer data from your previous iOS or iPadOS device to your new iPhone or iPad - Apple Support
You should have both phones connected to power, with Wi-Fi and Bluetooth enabled, Low Power Mode off on the iPhone 12, and if the iPhone 12 has VPN delete the VPN profile and app.