Cannot Access Server Outside of Home Network

[lakinreid]

The last few weeks I realized I've been having on and off issues with myself and my family connecting to my Jellyfin server while not on my home network. A few months back, myself and others had no issues connecting. Now recently, my sister has been getting the Cannot Connect To Server error when entering my domain name. Now after testing it on my cellular network, I am having the same issue. The only way it works on my phone/in the house is if I'm connecting directly to my home IP.. I note that as in the past I would see the server info contain my DuckDNS domain name.

I double checked that DuckDNS is up and running and it looks fine to me. It has my correct IP address and I have the yellow duck in my tray (which means it should be good). 

Other things that have changed in the recent-ish past: 
-Updated to Windows 11 (though that was 3 months ago, and issues didn't start then)
-Updated to Jellyfin 10.10.4, and just updated to 10.10.6 today to see if that fixed it, and it did not. 
-Moved and got a new ISP a few months back, but I have had many successful outside connections since then and the issues.
-hardwired my jellyfin server with ethernet, it was previously connected to my home network through wifi (not sure if that would of changed any settings)

Let me know if you guys have any thoughts, I'm honestly baffled. Everything was running smooth, and now POOF it ain't. Weird stuff. Thanks in advance yall!!