No one is logging into the session. I've just added 2 more vm's to the same pool and both new VM status is Customizing. I looked at the Events and I got this error message when failed to connect to the desktop "User domain\username could not be allocated a VM for desktop "desktop pool name" -reason: All sessions are busy -check for extraneous consle logins. I'm using a non-persistent pool. Thanks for the quick respond.