@Sunshine Huh didnt think to try update the firmware. So after I auto update it to 1.3.5 Build 20230922 rel.71211(5553) and test to download a 80gb+ game through steam, the download able to complete...

I currently have the typical setup where I connect my PC devices to an AX73 router, which is connected to an ONT modem using cables. I have been using this router for over a year without any issues....