2.5 gbps

I recently got a 2.5/1 Gbps FTTH line, but I immediately encountered a problem with the upload speed. Below are all the details: ONT: "Sercom FG1000R" with 2.5 Gbps LAN output Router: "Asus GT-AX6000" with 1 WAN and 1 LAN 2.5 Gbps port (Drivers updated to the latest version) Network card on...