Server not authorized

Server Version#: 1.43.2.10687-563
Player Version#: 4.159.0
<If providing server logs please do NOT turn on verbose logging, only debug logging should be enabled>

I keep getting “Server not authorized” or “server unavailable.” I’ve followed this tutorial https://support.plex.tv/articles/204281528-why-am-i-locked-out-of-server-settings-and-how-do-i-get-in/ It still doesn’t work.

I’ve installed the newest version of the server. I’ve given Plex any allowance available in Firefox. It still doesn’t work. I have no idea what to do now. There are no issues with my wi-fi. I’m not using a VPN.

Help?