Server Version#: 1.16.5.1488
Player Version#: N/A
I have an assigned /29 IP block from my ISP, which I use to assign my devices their own unique publicly routable IP, however, Plex still lists this as a private IP and a public IP - though it shows the same IP in both instances.
This might just be a cosmetic issue, but I did have a whole load of trouble last night with Plex not detecting that it was, in fact, available remotely. That seems to have calmed down now, but I will keep an eye on it.