I tred that, but When I clicked on Security, I couldn't see any option for adjusting security settings, or even for making the hub use my 5Ghz network wavelength rather than the 2.4Ghz. (When I select the 5Ghz onmy ipad, pretty soon it clicks back to2Ghz, and the ipad slows down.)
My ipad is runnig, not iOS 15.3.2, not iOS 14, which is what that note I was lined was concerned with. I don'tknow if that could have something to do with it.
Anyway, @I,ll have another look at the link, and see if I missed anything.