I am having a very annoying issue with my brand new iPhone 7 Plus that I purchased today. When setting up the new phone to import all my stuff from iCloud I am getting 'Verification Failed -- An unknown error occured' whenever I hit the 'Next' button to log in with my credentials. I doubled checked my username and password and there is no issue with those. Also, tried setting up as a new phone and entering the credentials inside the Settings app gives the same error message. I have no problem whatsoever logging into iCloud on web and all my other iCloud services are up on my Mac. I even disabled 2 Factor Authentication and tried logging in on the 7 Plus but with no luck (so I reenabled it back again). I am really not sure what else I can try and it's driving me crazy... I made an iCloud backup on my old 6S but will do an iTunes one as well just in case things go really wrong. Tomorrow I will sell the 6S and need to make sure I don't mess anything up. In the meantime, I would appreciate any advice/suggestions. Thank-you!