Messages freezing after upgrade to Yosemite 10.10.3

It works both way. Set it in Rules or Exceptions, it will work

Question - Are you guys on corp machines? I am and have McAfee to which i set an exception and messages opens right up.

Yes on a corp build.

I got it to work briefly by putting in the exception, but our stellar Infosec group has a policy that removes un-controlled entries and it was reversed. (not arguing because that is really the right way of doing things)

Going to get an official exception in the list and test more.

The McAfee discussion seems to be a red herring. I do not use McAfee (never would -- I left Windows long ago), and I have the same issue and symptoms.

On two machines.

Possibly there are more than one scenaro when this happens. I would need to upgrade my personal iMac to check it out.

However.....

For a 15" Retina MB Pro with McAfee.. this is repeatable thing.

- When I add an exception to the Application Protection it works,

- When I remove it, app and Laptop get hung.

I could not be bother to mess about and waste a bunch of time trying to upgrade, I have two MAC Books both experience the same issue of freezing and messages not work.. I made sure I had data backed up using time machine.

Then did clean install over the net using the CMD R option, first erasing the operating system with Utilities and then selecting instal new version ofl.

30 mins later all up and running again, with just a few minor tweaks to add accounts and own preferences. Copied data back to MAC using the Time machine.

Actually this process has done me a favour its got rid of a load of junk and apps I never ever used

I found this in another thread and it resolved the issue:

I found McAfee Endpoint Protection was causing this problem. Messages work fine if you set it as exception in McAfee (Application Protection section)

This thread already mentions that issue.

In fact this is the thread that first mentions McAfee and this issue being related after the OS X 10.10.3 update.

8:37 pm Tuesday; April 21, 2015

I think this might have helped me too1 I added the exception and after a restart Messages loaded like normal! 🙂

BUT.. Apple still should look into!

Macbook Pro Retina Late 2012

Thank you, I was about to give up on 10.10.3 I had this problem a month ago and nothing fixed it. Repairing Permissions did it!!

Thank You! It opened immediately and popped up three previous conversations ...

🙂

Hey Guys... please try the following ---> 🙂 🙂 🙂 This worked for me !!! @tomconrad helped 🙂 This should help!!! definitely mine is solved after this.. It is a workaround.. But I will keep talking to Apple folks to fix this! 😝

tomconradApr 23, 2015 11:03 PM Re: Facetime and iMessage on Macbook Pro Retina display slow after Yosemite 10.10.3 Update
Re: Facetime and iMessage on Macbook Pro Retina display slow after Yosemite 10.10.3 Updatein response to Shreyas RavindraSolved

Apple menu -> System Preferences -> Internet Accounts -> iCloud

Uncheck "Contacts"

Apple menu -> System Preferences -> Internet Accounts -> Google

Uncheck "Contacts"

etc

Open the contacts app; you should see no contacts listed (don't worry they haven't been deleted you're just not connected to the internet accounts that load them)

Now restart iMessage. It should start instantly.

Hi,

tomconrad's first post on the matter is here Re: FaceTime and iMessages slow to load

9:17 pm Friday; April 24, 2015

Thank you so much! McAfee was the problem for me. Today I updated and not only were Messages making everything freeze but so was Firefox. I tried a gazillion things & finally came across this discussion. Added the exceptions for iMessages & Firefox and now everything works!