Fix Plex SSL behind Reverse Proxy

Recently I updated to the latest version of Plex. I run Plex behind a Reverse Proxy server. When I initially set it up it was to provide HTTPS before Plex supported it. Now that Plex supports it I still use it to have my custom domain name attached to it.

This latest Plex update seemed to have broken SSL connectivity completely.. I couldn’t get SSL to work no matter what I tried. After pulling much hair out I found out there is a new option under advanced server settings:

Settings / Server / Show Advanced / Network

Scroll downs until you see

Custom server access URLs

It is here that you need to supply your own domain name and port. I struggled this for a while. If you type https://<domain name>, but don’t specify a port, it defaults to 32400, not 443. I finally got SSL to work with plex again by entering https://mydomain.name:443 in that field.

Plex works with SSL once more. All is right with the world again.

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