Plexmediaserver_1.14.1.5488-cc260c476_amd64 drives CPU to 100%

Hi @heynnema, are you by any chance running an OpenWrt router on your network with UPnP enabled (or any home-grown system with miniupnpd)? 100% CPU usage (for one core in multi-core CPUs) has been seen by quite a few people with the 1.14.1.5488 and later builds of PMS on at least Windows, macOS and linux (and derivatives).

Try turning off UPnP (no need to turn off NAT-PMP, just UPnP) on your router and restart PMS. You should see the CPU usage return to normal if this is the same issue. Going back to 1.14.5470 resolved the issue in every case and UPnP was able to be turned back on again.

There’s much more discussion of the issue here and here.