Plugin Error: Name does not resolve (raw.githubusercontent.com:443)

[outkst]

I still cannot figure this issue out. Every so often, the "Catalog" tab in the Plugins Admin screen will populate my available plugins. I still cannot replicate how or when this happens.

Further related to this issue, after getting lucky with the Catalog tab populating I am able to install a new plugin. After installing, if the plugin has settings to input username/password (like the "Open Subtitles" plugin) it will not make the call necessary to interact with the remote server with those credentials.

I am willing to mess around in the jail/container if needed but I have exhausted all options with IPv6 and firewall.