It's only happened on WIFI so far, I am in the process of getting an ethernet cable today. As for what I've done, I've manually reset the router a couple times in the last month, as well as the PS4 Pro, taking out the cables and putting them back after 20 seconds of being off. I've also done a ping test on my PS4 Pro's IP, and I've been receiving packets just fine according to that. I also tried manually reconnecting my PS4 to my router a few times, to see if there was any change, but it still persists.