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For years I've used Comcast and have had port 80 open to a web server at my house, without issue. I switched to CenturyLink fiber last week and port 80 forwarding works and my server is also visible to the outside world.

If I am at home and on the same local network as the web server (everything connected to the same router), I cannot access the sites by using the domain names. If I sign onto a VPN or turn wireless off on my phone, I can see the site by using the domain name.

I'm at a loss. Does anyone have any idea why this would happen?

  • CenturyLink fiber connection
  • C2100Z modem/router combo
frankiejr
  • 21

1 Answers1

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It sounds like the problem is that your router does not support or has disabled NAT Loopback.

If you can't enable this feature, then the solution is to have your domain name resolve to the proper internal IP address for machines on your network. If it's only a couple of machines, you could do this using a simple hosts file override. For a larger network you could setup your own local DNS server that resolves your domain instead of relying on upstream DNS servers.

kicken
  • 1,923