Can't sign in to earlier version of Messenger 11.5

Troubleshooting for Messenger 11.5 sign-in issues if you have a build version released before May 31, 2012.


  • On May 31, 2012, a Messenger 11.5 build version was released containing an update for resolving many sign-in issues.
  • If you have an older version of Messenger 11.5, we recommend upgrading to a newer version of Messenger 11.5 which should resolve many sign-in issues experienced with older build versions.
  • Upgrade now: Download the latest version of Yahoo Messenger.
    - For more information, see our help article about how to install or upgrade Yahoo Messenger.


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