I am having the same issue as others have commented the last couple of days, and I saw the next post, which was posted by @Sunshine, In that thread it mentions if my router's model is not in the list

This Article Applies to: TP-Link Routers/Deco products with HomeCare features, including Archer AX10000/AX11000/AX6000/GX90/AX50/C5400/C5400X/A20v3/C4000/C3150/C2300/Deco M5/Deco M9/Deco X60v1/Deco X6