the illegal login method in my opinion implies that the userid you used for a directory synce'd one.If you have SSO turned on then you do not need a userid /password so I would think to use the url directly livelink will figure out the rest.
To use a userid/password these are the minimum requirements
The Livelink's webserver should run "anonymous" authentication
The instance of livelink should have [Security] Authentication=Livelink
The userid and password was something manually created by a user administrator
Now don't get alarmed by what I posted when you install and configure livelink for the first time this is what everybody does,the SSO and other things require more work so touch base with your livelink administration and ask if they can help.
There are unsupported ways of making a Dir Svced user into a manual one as well.
Well, if I called the wrong number, why did you answer the phone?
James Thurber, New Yorker cartoon caption, June 5, 1937
Certified OT Developer,Livelink ECM Champion 2008,Livelink ECM Champion 2010