Messages and FaceTime Won't Sign In

Hi,

Ok. Do a NVRAM reset next

https://support.apple.com/en-gb/HT204063

This resets some things that are not reset with an ordinary Start up.

It will not effect any of your data.

If this does not work you may need to phone Apple Support (Apple Care) and ask someone to check if the iMessages Server is blocking your computer.

The Server can sometime "think" that too many attempts have been made from On device and block it making connections.

You may need to ask to be pushed higher up the chain of Responders becuase First Level Responders do not always have permissions to look at the server info.

Ralph

HI,

Have you had other Alert Messages from other apps about "trusting this Computer" or other ones that indicate that the Servers at the other end think this is a "New" computer ?

First of all go to System Preferences > Date and Time and set the Time Zone to your nearest city.

Check Bluetooth is On.

If the Firewall (in Security and Privacy) is On you might want to try allowing the two apps.

After trying the other items one at a time try going to the Network pane and renewing the DHCP lease.

Ralph

Hi,

So no other sorts of Alert/Messages from other apps.

That suggests it may not be at your end.

Login to iCloud's Web site.

Once logged in use your Name top right and look at the account settings.

Do you see your computer listed ?

Ralph

Hi,

So I had this issue also when I changed my Apple ID. I found that I needed to log out and then log back into my Apple ID on my MacBook. After doing that, I was able to sign into Messages and FaceTime with no issue. Hope this helps anyone else with this problem!

-Mikaela

HI,

That does sound useful.

It does point out that Two Factor Authorisation will requires the computer to be using the Same Apple ID thoughout which in some case may not be what you want.

Ralph