DFS namespace cannot be found element not found

We have DFS working fine using a single primary namespace. However, when I am in the DFS management console and select 'add namespace to display' it shows a second namespace \\<domain>\<namespace>

I'm not sure where this namespace has come from or who created but we don't use it. How can I delete it?

When I try to connect I get an error 'DFS namespace cannot be found element not found'

Thanks in advance

Craig

Craig Brand