You have entered your username and password but the connection between Vantage and Web Module only results in a 401 error. Why? More importantly how do I fix this?

We believe we have found a solution to your 401 connection problems.

In some cases all that is needed is to enter the published IP address of the Web Module server/computer instead of say the computer name. If this does not resolve the problem then take a look at this link: http://support.microsoft.com/kb/896861

A majority of clients that have experienced this issue have reported that "Method 2" on the above linked page resolved their 401 connection issues straight away.

If you continue to experience problems please contact us here at support for further help.

Also see:
http://support.webspy.com/customer/portal/articles/1717481-vantage---web-module-connection-error-401