Adding Outlook.com to WLM

Hi. I use WLM as my mail client. I'm very familiar with it so I add my other email accounts to it and view all from within. however, I've just added my Outlook.com account and it repeatedly asks me to sign in. So clearly some setting is wrong. As WLM sets up Outlook.com automatically I have no idea what setting have been used. Regardless of what has been used...what settings should I use to get WLM to sync my Outlook.com???