Hi
my TP-LINK Archer C7 V5 (Firmware 1.0.11) does not accept the 19.0.3 factory.bin for a first install. Support for TP-LINK Archer C7 v5 (RU) says that the previous 19.0.2 works through the factory web gui, which i can confirm.
I suggest that you decrease the v5 factory.bin-link from 19.0.3 back to 19.0.2 at your website https://openwrt.org/toh/tp-link/archer-c7-1750 until its solved.
Did anybody have a successful UPGRADE to 19.0.3 on an Archer C7 V5, compared to an unsuccessful factory.bin fresh install?
Regards