Q: ** Clean Install OS X El Capitan 10.11.4 -- iMessage/FaceTime Activation Doesn't Work

Finally everything works like a charm

zachs33s Where you are found this information?

Thank's

Here, roberto: https://www.apple.com/support/systemstatus/. As you can see though, the problem is now resolved.

Wow!

Thank's zachs33s.

The italians say: Non si finisce mai di imparare!

Thanks so much

Not resolved. I am still having the same problem when trying to log into iMessage. Error: 'Could not sign in to iMessage. - An error occurred during activation. Try again.' This isn't a fresh install either. This an upgrade from 10.8.5. Everything shows good on https://www.apple.com/support/systemstatus/. I dont know where to turn next.

Same problem here still, also on iPhone. Apple finally acknowledged the issue with the following response:

"  Alright, well, mixed news.

  The engineer responded back verifying the information is received and being processed!

  Because it’s being processed we don’t have much of an ETA for the activation issue to be resolved. And they have told me that this may be part of a wider investigation, and I should inform you that they are working diligently on it.

  So, hopefully we’ll have good news, but we’ll see how fast we get it.

  At least one issue seems to be in progress."

Still an issue as of 4/1/2016 on a MBP 8,1 (Early 2011) running 10.11.4. Problem arose around the 10.11.4 El Cap update. All usual fixes (minus a re-install) fail. Other Apple devices log in fine under the same account. Network capture during authentication communicates and terminates successfully (HTTPS), but can't see into the SSL stream to debug any further.

Hi  This issue that everyone is talking about on this post is this why this is happening to me and I just can't get it to work??  I am best to leave it along for a few days and see if things have been fixed??

I had an iphone 3 swapped to an iphone 5s, had a temporary number until my number came over with Telstra. Whilst the temporary number was in effect I had iMessages with my phone number, since my number came over I can't get it to activate at all.  Tried: 24hrs, rebooted, put it in Airplane mode, done a reset, gone to Telstra, you name it I think I've tried it and still over a week later nothing.  It started on Friday 25th March 2016.  It's the only thing that won't work, and Facetime probably but I don't use that.  I thought it might have something to do with the temporary number as when my actual number came active the temporary number was in the "Send & Receive" in iMessages greyed out and spinning, with the reset that went away but my actual number never appeared. Any suggestions welcomed.

With thanks

This started happening yesterday on a Mac Pro 4,1.

Updated to 10.11.4 from 10.11.3 at the weekend and everything was fine.

I was able to use iMessage without any problems until yesterday around 12:30pm BST. Since then, keeps asking for my AppleID info and when entered, I get an "authentication server" error. I was actually using iMessage when it looked to "go offline".

I've enabled the guest account, logged in with that and tried iMessage - same problem.

This is in the console (removed the emails & phone numbers to stop spam) :

06/04/2016 17:04:28.869 identityservicesd[299]: [Warning] Registration failed for Registration info (0x7fec91846500): [Registered: NO] [Type: AppleID] [Device Name: David’s Mac Pro] [Service Type: iMessage] [Env: (null)] [Main ID: xxx@xxx.com] [Phone Number: xxx@xxx.com] [AppleID: xxx@xxx.com] [UserID: E:xxx@xxx.com] [C2K: YES] [Push Token: <4c167857 fab18282 933369a9 afdfbf7e 763b4d62 0bc94ec1 f738ecac eacc19e2>] [Region ID: R:GB] [Base Number: +440000000000] [URIs: ()] [Candidates: (+447429xxxxxx, xxx@xx.com, xxx@xx.com, xxx@xxx.com)] [Auth Cert: 0x7fec8b625470] [Reg Cert: 0x0] [Profile ID: D:1063239355] [Auth User ID: D:1063239355] [Heartbeat Date: (null)]   (Error: 9)

Macbook Pro (also on 10.11.4) on the same network seems to be fine.

Any help appreciated!

D.

I am having the exact same issue with iMessages and Facetime. I'm running OSX El Capitan 10.11.6. All apps are up to date and I reset the PRAM. Any other tips or tricks are greatly appreciated!

I've had the same problem, but just fixed it on MBP 15" Retina late 2013 - seemingly for now anyway.

Open iMessage app; click Messages menu and select Preferences...; Click Accounts option and enable Bonjour IM. You should now be able to enter your Apple ID and password for iMessages...

I have the same problem. El Capitan 10.11.6. When I try to start Messages it says it can't log into iCloud because of "a problem with the iCloud account" Then it invites me to fix it in iCloud system preferences. However, when I go there it says my password "needs to be updated" and when I key in my correct password it says "an unknown error occurred".

I've been round this loop multiple times and I've even updated my password. I can log in to iCloud fine on both the iPhone and the Mac; however Messages and Facetime both refuse to accept my login credentials. iMessage and Facetime are both properly activated on the iPhone and I can make calls/messages with both of them on the iPhone.

I think this may possibly have started when I did an iPhone update to 9.3.3 but not 100% sure.