Hey guys, I have the same problem.
I can play fort nite with no issue like for 10 min with no lag, then all of the sudden it disconnects.
I go to the home screen and it says “connect to the internet” so I go to test internet connection, and it starts working again.
I bought my ps4 pro on Monday ! That didn’t happen when I used the old one that I bought in 2014.
any news on how to solve this sh**t?