I changed my iCloud password a couple of days ago and now Messages is no longer syncing correctly. My MacBook Air and iPad Pro are synced, but not my iPhone. And my Mac Mini now only sends SMS (green) not iMessage. I have looked for the solution on the google but none seem to work, including signing out and signing back in, or powering off the iPhone and iPad. What's peculiar is that if I send a message from my iPhone to my son, it shows up as "Dad" (his contact name for me); however, from my computer or iPad it shows up as being from my email address that is associated with my Apple ID. Sending from my Mac Mini now attempts to send an SMS but it fails to go through. Any ideas what is going on? This is really frustrating.