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This is a very weird problem I'm having with my Messages app on Mountain Lion. I have two accounts: a Google Talk and a Jabber account that is linked to my Facebook chat. Whenever I open my Messages app, my connection to Google Talk works just fine, but there is always a connection error with my Facebook account. But my Internet is working fine (like, I'm able to browse to just fine). It's not an account authorization problem (incorrect username/password), trust me. To fix the problem, I need to go into Preferences -> delete my Facebook Jabber account -> recreate the account -> boom, connection is working fine again.

But, as soon as I log off from my Messages app (by closing it) and re-opening it, the problem re-emerges. Connection to Google Talk works fine, but a connection error with Facebook again. Perhaps this is an issue with Mountain Lion's implementation of Messages; because it is a newer app than the battle-tested iChat, there are still some rough edges needing to be sorted out.

Anyone having any tips regarding this problem?

PS: I did try to look at this question: iChat + facebook disconnection

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Are you able to solve the problem by just disabling and re-enabling the account? – jtbandes Jul 31 '12 at 2:05
I've had this issue since the beta app. disabling and re-enabling like @jtbandes says works for me though – FLY Jul 31 '12 at 7:05
What are the settings you are using in Messages for the facebook account - what server is it pointing at and which checkboxes are enabled? – matt b Jul 31 '12 at 14:53
I have the server connections correct: server, port 5222. All checkboxes are unchecked! The error messages I keep receiving (in a popup): Messages lost the connection to the Jabber account “”. A network error occurred. Also, I shouldn't have to keep deactivating and reactivating the account in order to make it work. Please tell me if you disagree that doing so would be quite user-unfriendly and annoying. – ecbrodie Jul 31 '12 at 22:47
up vote 7 down vote accepted

These steps fixed the problem for me:

  • Disable the account.
  • Check 'Automatically find server and port'.
  • Enable the account again.
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Well...sometimes after doing this, the connection still sometimes barfs up. However, I realized that the quickest way to solve the problem at that point is to simply go to Messages->Accounts->uncheck and recheck This will re-login and we are back! – ecbrodie Aug 8 '12 at 14:24

To provide the solution I found: Sign in to Facebook on your browser, go to Account Settings > Security > Generate App Password

This will create a unique random password for you to use. Use THAT password instead of your actual FB password. Signed right in.

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I was having the same problem, then I do this:

  • Disable account.
  • Go to Server Settings tab.
  • Uncheck: Automatically find server and por.
  • Uncheck: Use SSL.
  • Enable account again.

Now it works!, my settings:

  • Server:
  • Port: 522
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That's bad joke dude, disable SSL for login. And port 522 !? – sorin Mar 7 '13 at 9:41
I know, but, doesn't work when I check the SSL options, :S. – nebiros Mar 8 '13 at 16:21

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