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Question: iMessage not working on MBP since update to High Sierra

I've logged off and signed back in again but can't send any messages.


I can receive them but the number is displayed not the name (so it isn't connecting with Contacts).


Any idea what's gone wrong?

MacBook Pro with Retina display, macOS High Sierra (10.13.1), Sep 2014; Latest software installed

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Nov 16, 2017 1:35 PM in response to Jerry Dammers In response to Jerry Dammers

See iMessage stopped working on High Sierra

User uploaded file

9:35 pm Thursday; November 16, 2017


 iMac 2.5Ghz i5 2011 (Sierra)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 iPhone 6 iOS 11.x and an iPad (2)

Nov 16, 2017 1:35 PM

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User profile for user: Jerry Dammers

Question: iMessage not working on MBP since update to High Sierra