Impossible to activate iMessage and Facetime in Mavericks

I have similar issue,
the iMessage keep trying to signing, but no response
facetime finally return a connection error.

But i can use iMessage, facetime within the same network, but in my iphone

Try checking your time zone settings.

A similar error happened to me in Mountain Lion. I returned to the USA from Europe, the time zone was still set on CET, but I was in the Eastern Time zone. iMessage did not like that at all.

i set the timezone to auto, it can show in Hong Kong, but Messages and Facetime still not work

I have exactly the same issue, since Mavericks upgrade on my MBP (mid 2012 15") I can't login to iMessages & FaceTime as it endlessly tries to login, and never succeeds. If anyone finds a solution, please do let me know.

The same thing... but i can use my wife's ID and it's ok with her. But not my ID...

I have the same problem. Unable to sign into both services from MBP.

I thought signing out/in of iCloud would help. Now I can't sign back into iCloud. To make it worse, I just switched from an iPhone, and can't log in to remove my number from iMessage. Now all my iFriends messages are hijacked by iMessage.

I'm having similar issues. Soometimes I can get past the sign in screen but once that happens it remains inactive. Looking at other posts, it's a bug that has been there from the beginning and Apple don't appear to have fixed it in the Developer Previews...

Same here.... can't activate my messages and facetime after upgrading to Mavericks.

same for me on iMessages and FaceTime!!! after login with my apple id (that correctly works on a macbook air with mountain lion) still spinning on enabling the account!!!!

What's going on, apple? First my camera stops working because of a plugin, now I upgrade to Mavericks and the camera works, but facetime doesn't. I have a brand new MBA and it's useless!!!

Same here, Messages and Facetime used to work fine but now I get a network connection error on Facetime and no reponse from Messages :/ They do work on my iPhone though so I don't know what's happening. I won't log out from iCloud considering many got problems trying to sign in again.

Updated to Mavericks as well from Mountain Lion....

I have spent most of this afternoon working on the signin issue with facetime and iMessage with Apple support. We have tried many of the recommendations like reset NVPRAM, making sure your time zone / time is correct on mac, create new user, removing NetworkInterfaces.plist, removing iCloud account and turning it on again, safemode, reinstall Mavericks over top again, changing apple ID password, deleting key chain enteries, etc.... the list goes on. Nothing has helped. FYI my account works fine on my other macs, just not my MBP. Weird.

I would be interested if anyone can look at their system.log and get a snippet of the log when you try to log in. Mine looks like this:

10-24-2013 8:09:47.232 PM FaceTime[587]: Retrieving server bag 1, 0x600000014990, 0, 0

10-24-2013 8:09:51.917 PM com.apple.SecurityServer[14]: Session 100029 created

10-24-2013 8:09:51.980 PM apsd[108]: Certificate doesn't match host

10-24-2013 8:09:51.980 PM apsd[108]: Stored identifier doesn't match host

10-24-2013 8:09:51.981 PM apsd[108]: Stored identifier doesn't match host

10-24-2013 8:09:51.981 PM apsd[108]: Certificate doesn't match host

10-24-2013 8:09:51.987 PM apsd[108]: Certificate doesn't match host

10-24-2013 8:09:54.740 PM FaceTime[587]: Retrieving server bag 1, 0x600000014990, 1, 0

10-24-2013 8:10:51.978 PM apsd[108]: Certificate doesn't match host

10-24-2013 8:10:51.978 PM apsd[108]: Stored identifier doesn't match host

10-24-2013 8:10:51.978 PM apsd[108]: Stored identifier doesn't match host

10-24-2013 8:10:51.978 PM apsd[108]: Certificate doesn't match host

10-24-2013 8:10:51.980 PM apsd[108]: Certificate doesn't match host

10-24-2013 8:10:51.982 PM apsd[108]: Certificate doesn't match host

10-24-2013 8:10:52.035 PM identityservicesd[454]: [Warning] Tried to disable an account we don't know about, ignoring...

My next step is to backup my data and do a clean install.... I am hoping there is a fix before I pull the pin and do this.

iMessage system.log looks like this when trying to connect:

10-24-2013 8:26:24.466 PM icbaccountsd[648]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:26:24.545 PM icbaccountsd[648]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:26:24.614 PM icbaccountsd[648]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:26:36.750 PM icbaccountsd[648]: __17-[ICBServer sync]_block_invoke: Client triggered, however either the checkbox is disabled or there are not enough peers, exiting...

10-24-2013 8:26:54.591 PM icbaccountsd[651]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:26:54.704 PM icbaccountsd[651]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:26:54.765 PM icbaccountsd[651]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:26:54.825 PM icbaccountsd[651]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:26:54.883 PM icbaccountsd[651]: icbaccountsd removing 8274b895594f3fdbad3fe4d8243365bbdb27dd from device list

10-24-2013 8:27:05.315 PM com.apple.SecurityServer[14]: Killing auth hosts

10-24-2013 8:27:05.317 PM com.apple.SecurityServer[14]: Session 100029 destroyed

10-24-2013 8:27:05.327 PM com.apple.SecurityServer[14]: Session 100032 created

10-24-2013 8:27:07.027 PM icbaccountsd[651]: __17-[ICBServer sync]_block_invoke: Client triggered, however either the checkbox is disabled or there are not enough peers, exiting...