Any one else has an idea how to resolve my issue?

There's no option to override the pingpong servers. Are you able to connect to this ip:port from outside your network? You can try to set up a public DNS SRV record https://wiki.factorio.com/Multiplayer#DNS_SRV_Records to make it easier to reach your server. I didn't know about the DNS SRV record. ...

I think you're misunderstanding what's happening. The entire point of the ping-pong servers is to see what the actual internet experiences when your computer sends a packet to them. Factorio is sending each of the ping-pong servers the exact same message from the exact same IP and port on the machi...

So the ping pong servers test by sending over random ports, is that right? 1.984 Warning ServerRouter.cpp:541: Received own address message reply with conflicting address (got IP ADDR:({<hidden>:26256}), expected IP ADDR:({<hidden>:16849})) It looks like port 16849 was used in this example. Hmm. Th...

Peter, I am having much the same problem but with Azure hosting. I also can configure the NAT and have pretty good control over other networking settings. If you figure this out, please post about it! Unfortunately I haven't. I will post here if I have working solution. I'm hoping the Factorio devs...

It is possible that they deploy carrier grade NAT to manage their limited IPv4 addresses. https://en.wikipedia.org/wiki/Carrier-grade_NAT You can also try this test page: http://ip.bieringer.net/cgn-test.html My ISP is not using Carrier Grade NAT. The test that you link confirms that. I'm actually ...

This is mostly likely an issue with the NAT configured by your internet service provider, Factorio is only able to work around simpler NAT configs. More info: https://tailscale.com/blog/how-nat-traversal-works I recommend you set up something like tailscale or ask your provider for a static ip. My ...

I'm running a headless server in my Kubernetes cluster. For clients on my local network that works without any problem. But nobody from the internet can connect. I looked into the logging and found the following lines : 5.682 Info ServerRouter.cpp:664: Asking pingpong servers (pingpong1.factorio.com...