Are you trying to browse the internet using Internet Explorer, but are you getting the error message 'authentication error'?
On this page, you will find more information about the most common causes and most relevant solutions for the Internet Explorer error 'authentication error'. Do you need help straight away? Visit our support page.
We've created a list of solutions which you can follow if you want to solve this Internet Explorer problem yourself. Do you need more help? Visit our support page if you need professional support with Internet Explorer right away.