External Connection Issues

[Radtech81951 2]

@Luke

So after using chatgpt extensively, it came to the following conclusion..

Port forwarding is configured correctly with a reserved IP. canyouseeme.org can connect to the forwarded port, TCP sessions establish, but HTTP traffic never completes. The same server works immediately when the GFiber router is placed in bridge mode and the Netgear R9000 performs NAT and port forwarding instead.

I messaged Gfiber support and got this response. Once I receive the new router next week, then I'll update if the issue has been solved.

The behavior you are describing—where a TCP handshake completes successfully but the application-layer HTTP traffic stalls or drops—is a known issue that typically points to how the GFiber router's built-in firewall or security firmware handles specific packet inspection, or a potential issue with the Maximum Transmission Unit (MTU) size stripping HTTP headers.

Agent 4:06:26 PM

Since you are on a 3Gbps plan, a firmware glitch on the GR6EXX0C model shouldn't throttle your setup. I can initiate an exchange for your current router. - We can swap your Wi-Fi 6E router for our newer Wi-Fi 7 Multi-Gig Router. - This will completely bypass the specific firmware bug present on your current device, handle your 3Gbps speeds natively, and allow you to manage your port forwarding cleanly without relying on your legacy Netgear R9000.