Could not sign in imessage. An error occurred during activation.

Hi all -

Just started doing this message this morning after signing imessage and restart. I get the same error for facetime on mac. I've updated to 10.11.6 July 23. I have a serial number for the mac. I stop and cleared NVRAM memory at least 5 times. Any help/ideas would be appreciated. Thank you very much.

Hello pawwright,

Thanks for this info and choosing the communities Support from Apple. I know how important if iMessage working on your Mac is up to you! If I understand correctly, you can not sign in iMessage on your Mac since the update of OS X El Capitan and get an activation error message. I would start with the procedure described in this article:

If you get an error when you try to activate FaceTime or iMessage

Also, if you are using an iPhone with iMessage, as well as on your Mac and other devices, I try to connect on iMessage on all your devices, restart your iPhone and sign in on your iPhone first iMessage. If iMessage activation is successful, then try to connect in iMessage on your Mac again.

See you soon!

Tags: Mac OS & System Software

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