nice buffer bloat tool for troubleshooting router or modem. I recommend wifi 6, 6E or expensive 7 for the router from ASUS (stable). Then also use a network cable non-wifi option for testing baseline of bufferbloat. Sometimes you may need new coaxile lines ran if old or a more modern docsis 3.1 modem. if modem is docsis 3.0 or older, see if you can get a free upgrade from ISP. If issues occur with F-C scores in buffer bloat, call isp to test modem for signal loss, heat, noise etc.