I have the original superhub. I got a ps4 and decided to go wired, after wireless connection was really bad on Black Op3. I managed to put it into a DMZ mode and have an open NAT type for quite a while. Then I moved my Ps4 and accidentally set up a new connection. Ever since, I have ran into many issue. I simply cannot get an open NAT type. I have tried DMZ mode, made a static IP, used modem mode, disabled my firewall and port forwarded and it simply will not work( Yes, I enabled UPnP). Whats worse is my wifi which is NAT type 2 comes up as strict on BO3 as well, which it was not before! I have spent hours trying to fix this but everything I do does not work.
I also had a ps3 which I switched cables with the PS4 to get an open NAT type on that and now it won't work either. I also have a computer with a static IP.(If any of these are causing the issue.)