Internal (static) IP of the computer running the server: 192.168.0.179
External IP: Will be referred to as just "EXTERNAL" for the purpose of security
Through my router interface, I have port forwarded ports 25565 and 19132. The latter, I'm not sure actually affects the server, but it helped someone in a previous forum.
On multiple open port checking tools online, I have received an error saying that the port was closed. On the website, canyouseeme.org, I got the message:
Error: I could not see your service on EXTERNAL IP on port (25565)
Reason: Connection timed out
The server was running at the time that I checked this.
I can connect to the server on the same computer that is running it through localhost. The server runs fine with this method. On other computers within the same network, I'll try to connect either with 192.168.0.179 or with 192.168.0.179:25565. Both return the error: connection timed out. Connecting on a computer outside the network through EXTERNAL:25565 also returns the same error.
There is no 3rd party firewall running on the computer hosting the server. On the router settings, I can't see a section to change the firewall settings. The router is, once again, the Luxul ABR 4400. Through the modem interface (I connect to this through 10.0.0.1), I can see that the modem is functioning as a bridge, and shouldn't, to my knowledge, affect the router settings. I don't even think the modem is doing anything at the moment, as there are devices connected to the WiFi, but none show up under the modem's connected devices.
I completely turned off the firewall via the Xfinity Gateway, but that hasn't changed anything at all.