Helpful tip for new PS4 Pro Owners on WiFi: Check your router for a 5Ghz signal. It will improve your connection greatly. : r/PS4Pro
PS4 port forwarding: Easy step-by-step guide | NordVPN
For how long have I been getting this message and I can't connect to the console, everything was fine before, does anyone have any idea how to fix it. : r/PSPlay
How to Fix the NAT Type on a PlayStation 4: 10 Steps
How to Change Your PS4 NAT Type to Type 2
HOW TO OPEN NAT TYPE ON PS4 [Easy/ No Music/ Working] - YouTube
PS4 port forwarding: Easy step-by-step guide | NordVPN
How to Check & Change NAT Type on PS5 | CyberGhost VPN