XMPP session drops when MSN Gateway login one of the accounts


I’ve installed OpenFire 3.6.0a including the IM Gateway plugin and having an issue with one account trying to login via the MSN Transport.

I’ve registered the MSN account manually through the Registrations webpage, whenever the JID account (that is attached to that MSN account) goes online, it disconnects the XMPP session after about 3 seconds.
When I look at the client software, I see that all of the contacts were added successfully via XMPP.
When I try the same with some other MSN account, everything works fine.
I guess it is something with the specific contacts of the problematic MSN account. Is there any way I can debug it in OpenFire and check the cause of this disconnection?

BTW, this MSN account works fine with MSN clients.