Hi, I have a MI424WR-GEN3I (Hardware Version I) router with firmware version 40.19.22. Per the routers user manual (MI424WR, rev.I) it is capable of reaching 160Mbps 802.11n wireless speeds. But when I go into the router's "802.11b/g/n setup menu I see only two options: 1) Compatibility (802.11b,g, and n devices) and 2) Legacy (only 802.11b and g devices). I do not have the "Performance (only 802.11n devices) option to select, as per the user manual. How do I get the router to show the "Performance, 802.11n only device option so that I can select it? I must be missing something in the routers setup menu but just can't figure it out. Any help will be greatly appreciated. Thank you for your time and assistance.