It is important to access the Lexis Library from a Library page so that you pick up the Queen's authentication link for Lexis.
You can do that by searching the Library Catalogue for the 'Lexis Library' from the Library homepage and then selecting 'Go to this resource' from the catalogue entry for the resource.
You will be asked for your normal Queen's id and password both on and off campus.
A ‘sign in’ page sometimes appears for the Lexis Library, but usually not. If you see the Lexis sign in page, follow the Queen’s University Belfast link in the right margin of the page (ignore the ID and password boxes).