Hi  @Wester6472,

Archer C5 is a customized device specifically designed for local Service Providers. Its software is tailored to meet the unique requirements of these providers, ensuring alignment with their specific needs. While our technical support team is adept at providing general guidance and suggestions for products with standard, generic firmware. However, due to the specialized nature of the firmware on your device, our ability to provide troubleshooting may be limited.

We can certainly offer some troubleshooting tips that may help resolve your issue. Please consider the following:

    1. Make sure the server is accessible from the internal network.
    2. Make sure your router obtains the public WAN IP address, if your WAN IP is not a public one, port forwarding will not work. (CGNAT address is also private IP address that ranges from 100.64.0.0 to 100.127.255.255.)
    3. Check the firewall settings of your server, make sure it allows traffic from the outside Internet.
You may check more detailed instruction following the FAQ: Why port forwarding feature is not working on my Wi-Fi router or Deco?

If the problem persists after trying these steps, we recommend contacting the technical support of your Service Provider who supplied the device, as they are best suited to provide the necessary assistance for your device.