Sorry you're experiencing this, I follow this forum precisely for this reason and this is not your first complaint nor your third, I really think that something in the NON-PRO versions or in general in the relationship between ASUS MESH and QUAD-BAND just doesn't work!
It's sad that even after almost two years Asus can't overcome the problem, but on the other hand, WIFI7 didn't really prove itself worthy and was full of problems, but it seems that the quad-band combination broke Asus. It's a fact that the BT10 Mesh system has been working for many months with many users, but on the other hand, the complaints about the BQ16 (mainly from non-pros but not only) are simply everywhere!