Hi, Now that I work from home, I don't have a standard ISP router. Instead, I have a modem and a corporate firewall in order to protect my company's operations. I would not use uPNP, even if it was supported by the firewall. My sons both own Xbox Ones and PCs. (4 devices in total.) They have bought Destiny for both formats. I have created a Games group on my firewall which contains the IP addresses of all 4 of their devices. I have created a Destiny Service which contains all of the ports required for both formats. I have created a firewall rule which allows traffic through the Destiny service to the Games group. This works, but it leaves these four devices exposed on all of the open ports to the whole of the internet, which is fine for testing, but not a practical solution and is currently disabled. The firewall rule will allow me to specify the source from which this traffic will come. The source can be either IP addresses or server URLs / domain names. Could Bungie please provide a list or range of IP addresses or specify the domains used to host their game servers? I am expecting bungie.net, but are there any other domain names used by servers that should also be listed? This information is important for keeping a secure network. Please reply to my Bungie account email address. My sons are hoping for your quick, positive response. Kind regards.