I am trying to downgrade the firmware on my AX21 to Archer AX21(US)_V4.6_1.0.5 Build 20221116, however when I try to do the Local Update option on the tplinkwifi.com admin UI I get an "Upload error." Specifically, I'm trying to upload the "AX21v4.6_us-up-ver1-0-5-P1[20221116-rel40103]_2022-11-16_11.08.35.bin" file from the TP-Link firmware website. What can I do to be able to have this firmware successfully upload? Thank yOu!