The instructions listed here : http://www.lansweeper.com/kb/31/How-to-enable-authentication-for-IIS..html
When you change the IIS settings, any attempt to browse the site prompts for a password. No password is accepted because there are no groups assigned or created.
For others experiencing the same issue: if your web console is hosted in IIS, try setting the authentication provider to NTLM. Do the following: • Right-click on Windows Authentication in IIS. • Select Providers… • Select NTLM. • Hit Move Up. • Restart your browser and try accessing the web console again.
Please contact support@lansweeper.com and provide us with: - Screenshot of how you are submitting your credentials. - Screenshot of the error. - Screenshot of Configuration\Website Management\Website Access. - Screenshot of Configuration\Scanning Setup\Your License.