Can someone please assist with port forwarding on the Archer C9? I'm trying to establish api-key downloads but have not been able to figure out how to establish port forwarding on this router. Thanks

After I upgraded my Archer C9 V1 to the latest firmware version, it only replies to pings. I can't bring up the web interface. It still does hand out DHCP addresses though. I can't see any Wifi SSID e