The request failed with HTTP status 407: authenticationrequired.System.Web.Services

In setting up AdvancePro, you may encounter the error below when logging in. 

"The request failed with HTTP status 407: authenticationrequired.System.Web.Services"

This error indicates that the computer does not have access to sites below: 

http://webservices.advanceware.net

https://webservices.advanceware.net

http://advanceware.net

https://advanceware.net

To fix the error, you need allow access on the above sites on the machine. 

Internet Explorer > Internet Options (Gear Icon)

Next, on the Security tab select Trusted Sites then Sites

Add sites mentioned above and make sure to uncheck the box that says "Require server verification (https:) for all sties in this zone"

When done, Close, Apply and OK.

Restart AdvancePro.