Modern Warfare bad maybe others

So I haven’t been able to connect to MW servers for a while now and I have tried absolutely everything I know, I have tried port forwarding to the MW servers (TCP.1935, 3478-3480. UDP.3074, 3478-3479.) that has yet to have solved the issue. I have tried setting up a DMZ for the PlayStation, as of yet it has not worked. I’m honestly out of options, it cannot stay connected in game esp MW, and I am pretty sure this is on the providers side, I even tried using a LAN cable, granted the speeds were there, but what good are they if you can’t even utilize them in game! Anyway if anyone has a fix to this issue I would greatly appreciate it.