This is the issue i have.
I've set up my multisite and the network appears to be working. I've set up for sub-domains and created a test domain called "test."
Now if i go to the new test domain it is working. However if i go to network admin and try and go to the dashboard for the test domain it just takes me back to to front page. It wont allow access to the admin of the network sites.
I'm sure i've missed something to allow access to the dashboards of network sites.