Question: what is the difference between nat type 2 and 3?
Answer: nat 2= you have your ps4 plugged into or using a wireless router and it is open. nat 3= you have your ps4 plugged into or using a wireless router but it is closed. basically, nat 2 is what you want if you are using a router. nat 1 will only show up with direct connections but few people will do that.