I installed WP Multi on a subdomain (subdomain on my main site hosting account)
The site itself renders OK, but when I created some sites as a subdomain on the wp multi, the problem started.
Sites can't be reached.
I have no idea about php, just copied all the files required, looked around in th WP help files and enabled the *.sudomain in Cpanel.
I have a permanent redirect from http;//mysite.com to http://www.mysite.com for the main domain on my hosting.
Could that be causing the problem?