There are currently problems authenticating to a number of our online resources if you are accessing from outside the University network. This includes Lexis Library, Westlaw and Justis, and possibly a number of smaller services as well.
The issues seem to stem from changes to the Raven/Athens authentication to implement the final closure of Athens. This is currently being investigated as a matter of urgency.
Update
As of 19th August, this problem only now affects Westlaw.
Please note that you can still access these resources from any computer attached to the University network - this issue only affects remote access.