Connecting server to server (s2s) from openfire to IBM lotus sametime 8.5

Has anyone manged to get theses two products working together correctly ? I am trying to have the Sametime server connect to jabber s2s like it would as if it where gtalk, yahoo, aim. I have gotten gtalk and yahoo to work correctly on the sametime server but it fails when trying to add our openfire server to the lotus sametime gateway. IBM is saying that it is the jabber server failing to connect and not the sametime server, in the past i have had two jabber servers working s2s just fine so not sure what it could be, any tips or advice would be greatly appreciated.