It is suggested that when connecting any StudioLive AI mixer that you use only the network LAN ports on the router. The WAN (internet) port on a router sits behind firewalls at times, and is designated to speak through gateways and external network connections to Internet Service Providers (ISPs).
PreSonus always suggests only using the LAN ports on your router at all times for proper communication. For information on proper techniques and connection of your StudioLive AI mixer, please see the following links below.
StudioLive Ai Mixers - Wireless Network Setup and Troubleshooting
StudioLive RM Mixer - Wired and Wireless Network Setup and Troubleshooting