How to manually upgrade the firmware of an Asus router - YouTube
How to Update your ASUS Router Firmware - YouTube
RT-AC68U|WiFi Routers|ASUS USA
RT-AX88U - Unable to update firmware | SNBForums
ROG Rapture GT-AXE11000 - Support
With this huge router issue going on i've been trying to update my firmware, noticed one of my RP-AX56 nodes are on a newer firmware than the other both say they are
Firmware Update Notifications for My Asus Router | Henrik Sommerfeld's blog