Hi @Rain365,

Archer AX55 supports NAT loopback.

For your issue, please try the following suggestions:

• Check Router Settings:

  • NAT Loopback Support: Log into your router's settings and check if NAT loopback is supported and enabled. Look for terms like "NAT reflection" or "hairpinning."

• Use Local IP Address:

  • Instead of using the public IP or domain name, use the server's local IP address (e.g., http://192.168.x.x). This bypasses the need for NAT loopback entirely.

• Update DNS Records:

  • If you're using a domain name, you can create a DNS record that points to the local IP address of the server when accessed from within the network. This method eliminates the need for NAT loopback.

• Router Firmware Update:

  • Ensure your router's firmware is up to date, as newer firmware may offer better NAT loopback support or configuration options.

• Firewall Settings:

  • Check the firewall settings on both the server and the router to ensure that traffic is not being blocked.

• Port Forwarding:

  • If NAT loopback is not available, you can set up port forwarding rules that allow connections to the server from the public IP address to the local IP address.

• Test Connectivity:

  • Use tools like ping or traceroute from a device on the same network to the public IP and local IP to confirm connectivity.

If the issue persists, please take screenshots with error message and NAT loopback settings.