Okay,
let me add my story to this thread.
Brand spanking MBA, Mountain Lion.......logged into Imessage 1st thing, no prob.
Then, after a few weeks; in the middle of a chat....the name of the other person turned red and my sent messages received a red dot as they were not sent. I checked with the other person.
I couldn`t recieive any messages either, not from any contact.
I logged out, and I couldn`t log in anymore.
I get a yellow triangle saying something like "error while logging in, try again later".
I tried again and again later........
I seeked help on this forum and a user helped me initially.
I re-installed the whole Mountain Lion, a process that I don`t care to repeat too often.
That fixed it for a while, but yesterday the same thing happened.
In the middle of a chat....the red name, the red dots......well, you get the picture.
I tried, to no avail:
# to log in after reseting the PRAM
# boot up and log in whilst in SAVE mode
# to log in after deleting all Imessages and Facetime files in Library/Preferences
# to log in with my wife`s Apple ID, or any ID really.
What did work was logging in with my ID on my wife`s Ipad, no worries.
My account is Yahoo, and don`t seem to be the problem.
Please, any suggestions welcome.
I have urged Apple politley to give us a fix at:
http://www.apple.com/feedback/
Thanks,
MXP 150 Patriot