Read more at source: http://blogs.technet.com/b/nexthop/archive/2013/11/13/new-lync-online-guided-walkthrough-helps-office-365-admins-troubleshoot-sign-in-issues.aspx
Cheers,
Anderson Patricio
@APatricio
http://AndersonPatricio.ca (Engish)
http://www.AndersonPatricio.org (Portuguese)