With regards to firewalls and LMI services, we cannot keep up with the changes individual security providers make with their own software. Due to this, we have a general firewall document available here, that you may reference with any security vendor in order to locate their specific features pertaining to each url and IP: http://help.logmein.com/articles/en_US/FAQ/How-do-I-configure-my-firewall-to-work-with-LogMeIn-en1