Dell B2375dnf scan to network problem

Hello

I want to scan to my network. I have installed the drivers etc on my 2012 server. Gone to address book on the web interface and tried to add a scan to network address. I have set it to anonymous. When I test the settings it says connecting to server successful then errors out trying to login in. But I set it to anonymous.

In frustration I set it with the admin credentials, and again it says 'login error' 

It gives no further information so I don't know how to proceed.

Any ideas?