this is a new machine. 4.3.3.0229 build 20170624 intel cpu J1900
i initially tried the Plex Media Server that's in the qnap app store.
removed that, tried manually installing PlexMediaServer_1.7.5.4035-313f93718_x86_64.qpkg
removed that, tried manually installing PlexMediaServer_1.7.3.3937-70f781325_x86_64.qpkg
all of them behave the same: when i go to ip.address:32400/web in my browser, i am prompted to sign in to Plex. if i use my existing Plex account, i see my other Plex servers. if i create a new account, i see no servers. it seems to only be running the web client. i don't see any obvious errors in the Plex Media Server log files, and there is a "Plex Media Server" process running.
it is pretty much nothing like any installation process described on the site that i have found. i think it is supposed to put me into a form to set up a server? or something like that?
in any case it doesn't work and i am stuck.