Bro, I just made an account to thank you. For me actually the power off/on 3 times did the trick. It's actually insane how bad Asus software works, but the more impressive you figured this out.
My setup is:
AIRouter: Asus ZenWifi CT8
AINodes:
- Asus ZenWifi CT8
- Asus RT-AC68U
- Asus...