All of this is remote, and 3/4 of them is picked up that way. But the last one thinks its local. I think Plex is using the X-Forwarded-For and it seems to mostly, but sometimes it doesn’t. I Can see in the log is says “Using X-Forwarded-For: XXX.XXX.XXX.XXX as remote address” but then plex still classifies it as local.
Seeing that the IP shown in 192.168.1.1, I would think that connection is coming in through your reverse proxy. The true connection is hidden to Plex so it will think it is local.
Why doesn’t it think that all my traffic is local then? Does plex respect the X-Forwarded-For header? It seems to for most traffic, seems to be some though that it does not, however. Should it?
I don’t know how you setup your forwarding. Since you are not using Plex’s regular remote access settings, results will vary depending on what you’ve done.