You sure you wanted to post this question in "this" forum?
And if: be a bit more specific.
Type of browser
Type of website https or http
Type of redirect https or http
Type of internet connection wifi or cable
Does it go throug a proxy
Have you ever tried from an other location.
Do you know folks where it works? Log in there with your credentials and test.
And a bunch of other questions come to my mind - there is a reason for my nick being error_401
