You are legend! It works!! Thank you so much.
I and my friend has this connection issue on PS5 since day 1.
I can’t join his game neither to him.
However we can connect to our friend no issue.
Done the delete save, port forwarding and whatever NAT1 NAT2 settings all not works.
Sus it is our ISP thing as I and my friend are using the same ISP while our other friend using different one. But I don’t know how to explain that to ISP….
After saw your post, I called up to my ISP to explain (CS has no idea what I am talking about) after a couple of minutes, she said she put me out of CGN but into the dynamic IP range.
BAM! Thank you.
This is the thing we are talking about (correct me if I am wrong)
https://en.m.wikipedia.org/wiki/Carrier-grade_NAT