Many consumer routers are configured by default to provide optimal connectivity for Resonite by routing traffic in such a way which permits the ability for users to directly establish a connection to other users on the Internet. However, some advanced routers employ a type of NAT (Network Address Translation) where port numbers are not preserved when communicating with other hosts on the internet. This type of NAT is often referred to as strict, or “Type-3”. As the name implies, the strict nature of this type of NAT does not permit the ability to establish connections with other users.