Before I ask my question, the form asks for the hardware version and the options are V1-V20, but my router hardware version shows: Archer AX21 v1.20. So which one should it be? Anyway, I'm puzzled and

I just ordered the AX1800 and planning to use my current Archer C9 as an access point (in my guest house). Is there an easy way to migrate settings from C9 to AX1800? The only things I need to migrate