Can connect to forge server locally, public ip doesn't work for me or friends.

[DaemonUmbra 358]

Out of curiosity you are talking about ipv4 addresses, right?

[Sibs 0]

1 minute ago, DaemonUmbra said:

Out of curiosity you are talking about ipv4 addresses, right?

Yes.

[DaemonUmbra 358]

and there are no errors in the log, right?

[Sibs 0]

Just now, DaemonUmbra said:

and there are no errors in the log, right?

This is the only error

[Sibs 0]

Ok I think that I finally found the problem and I am just a complete dumbass for not knowing this. It turns out that the "modem" that AT&T gave us when we moved in actually ALSO functions as a router, so I actually have 2 routers in my network. I have no idea how to go about port forwarding with 2 routers and would appreciate any help if possible. Here is my network map(with models for routers):

 

AT&T BGW210 -(wired)>ASUS RT-AC5300 -(wired)>PC 

 

As shown on the map, everything is connected via ethernet.

[Cloudy 14]

There's a couple of options here. The first is, if you're willing, to put the AT&T BGW210 into modem only mode as two routers is hardly ideal. 

 

You can find a thread about it here: https://forums.att.com/t5/AT-T-Internet-Features/Help-Configuring-BGW210-In-Bridge-Mode-IP-Passthrough-for-EA9500/td-p/5265310

 

The other option is to do port forwarding again - but to the routers IP address from the modem. You should be able to find what IP the router has been assigned from either the modem or routers control panel. In the routers control panel it should be listed as a WAN or Internet address, despite being connected to the modem acting as a router.