Yes. Under LAN → IPTV → Select ISP profile or manually set VLAN tags (e.g., 101 for internet, 102 for IPTV).
~1GB DDR4 (typical for high-end ASUS Wi-Fi 7 routers). asus rt-be96
Yes. In Wireless → Professional → Set “802.11be” to “Disabled” per band. 101 for internet