I've noticed since an automatic update two nights ago, that now nobody can connect directly to my PMS. The ports have not changed, IP has not changed, basically the only environment change was the PMS update.
I've even went in and manually specified a port in my router, and still nothing. Now i can connect in an Indirect manner but it affects the quality of my streams. This has worked flawlessly for 5 years connecting to plex, this is the first time it's ever happened. UPNP is on the router as well.