We’ve created a Jabber client using Smack and we’re having a strange issue. We can successfully communicate with a user logged in via a 3rd party client (Adium or Pidgin) but not with the same user logged in via Gmail or the official GTalk client. We’ve tried both the latest released version of Smack and a version built from svn HEAD. I can provide more information if necessary but I thought I’d start by giving this short description to see if this was a familiar issue to anyone out there. Thanks!