Hi I recently purchased an iPhone 8 and now I'm configuring it after installing iOS 12.1. During the installation it asked me for my Apple ID, and I typed it. Now, my iMessages from my macbook pro on High Sierra 10.13.6 (which included iCloud Messages) and all the Notes are not syncing. Maybe there is something more that doesn't sync, I haven't tried yet. All my contacts info is there. So why isn't Messages syncing? I go to to Settings and then Apple ID > iCloud and the toggle Messages is off, meaning I cannot sync my messages with iCloud... And now it showed an iOS warning with this content: "Messages is not available for you Apple ID: You cannot use Messages with the ID (my email adress) because it requires the two factor autentification, which is not compatible with your account." Oddly enough, the Notes app toggle is on, but anyway, Notes are not syncing... I could try to enable the two factor authentification, but it hasn't been mandatory until now. I'm using Apple products for the last decade, so I don't understand why I'm having this problems... EDIT: The WiFi connection didn't work. After a reboot, WiFi is working again. Are there any known issues with iOS 12.1 and WiFi 5GHz? Thank you.