Been playing for about 2 weeks now with no issues. Last evening after playing for a couple of hours I was suddenly unable to join any other games. Figured it might just be a temporary issue, but came back on this morning and still the same. It just searches for potential games constantly. I've seen other topics online about this but haven't found one which seemed to identify a fix, assuming there is one. I've tried resetting the PS4 as well as my modem, but to no avail. just not sure why everything was fine until last night.