App on 55B7P cannot see any PMS servers.
Deleted & re-installed app. Successfully logged out & logged back in (so app is talking to Plex servers). Settings -> Devices shows, "16 minutes ago," and "Plex for LG 3.13.11." Full power cycle on TV (pulled plug) didn't help.
TV connected via wired Ethernet. Connectivity OK (streams Netflix w/o issue). NVIDIA Shield TV connected to same switch. Plex client on Shield can play movies from a) PMS on same Shield; b) PMS on Synology NAS; & c) Plex Cloud.
TV Settings -> General -> About shows Software Version 04.70.36. Current version according to "Check for Updates" test.
Any ideas?