Troubleshooting streaming when no on wifi

Completely new here..had some problems with install and setup but I have everything working over wifi. I'm having trouble with port forwarding. This hasn't been an issue in the past, and the Subsonic settings the Status: Successfully forwarding port 4040
I'm not able to stream via the Subsonic app on my phone unless I'm on the wifi network. Any help would be greatly appreciated!
Subsonic:
6.1.5 (build 759abe) – December 1, 2018
Server jetty-6.1.x, java 1.8.0_131, HSQLDB, Mac OS X (95.8 MB / 140.5 MB)
Running Subsonic on MacOS 10.14.6 and streaming on iOS from iSub app.
Recent log:
[10/20/19 8:25:25 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 8:25:25 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 8:25:25 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 8:31:00 AM EDT] INFO NetworkService Successfully forwarding port 4040.
[10/20/19 8:40:13 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 8:40:13 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 8:40:13 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 8:42:14 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 8:42:14 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 8:42:14 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:16:51 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:16:51 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:16:51 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:17:01 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:17:01 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:17:01 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:17:17 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:17:17 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:17:17 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:22:29 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:22:30 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:22:30 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:27:12 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:27:12 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:27:12 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:30:15 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:30:16 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:30:16 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 10:19:24 AM EDT] INFO NetworkService Successfully forwarding port 4040.
I'm not able to stream via the Subsonic app on my phone unless I'm on the wifi network. Any help would be greatly appreciated!
Subsonic:
6.1.5 (build 759abe) – December 1, 2018
Server jetty-6.1.x, java 1.8.0_131, HSQLDB, Mac OS X (95.8 MB / 140.5 MB)
Running Subsonic on MacOS 10.14.6 and streaming on iOS from iSub app.
Recent log:
[10/20/19 8:25:25 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 8:25:25 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 8:25:25 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 8:31:00 AM EDT] INFO NetworkService Successfully forwarding port 4040.
[10/20/19 8:40:13 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 8:40:13 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 8:40:13 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 8:42:14 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 8:42:14 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 8:42:14 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:16:51 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:16:51 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:16:51 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:17:01 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:17:01 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:17:01 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:17:17 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:17:17 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:17:17 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:22:29 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:22:30 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:22:30 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:27:12 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:27:12 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:27:12 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 9:30:15 AM EDT] WARN RESTFilter Error in REST API: EofException
[10/20/19 9:30:16 AM EDT] ERROR JAXBWriter Failed to marshal JAXB
[10/20/19 9:30:16 AM EDT] ERROR RESTFilter Failed to write error response.
[10/20/19 10:19:24 AM EDT] INFO NetworkService Successfully forwarding port 4040.