I have a content dashboard for various services that I use (PlexRequests, PlexPy, Plex, etc) which is basically a landing page with links.
Each service is accessible from outside my LAN when manually navigating to its port (I use a DDNS provider (no-ip) - so ****.DDNS.net:port) and works without issue that way.
When using the dashboard though (I've tried two different dashboards, both PHP-based), I start to see timeouts. The dashboard itself loads without too much issue, but once I try to use one of the links to navigate to a service it sits there for a few minutes and times out.
When accessing the dashboard over my LAN, it works without issue and I can hop from link to link quickly. The issue only occurs when coming in from the outside. All ports have been forwarded in my router, and I'm not using SSL.
Any thoughts? Is there something on the IIS side that I might have forgotten/not known how to set up?