@Clive_A Hardware Version: TL-SG3428X 1.0 Firmware Version: 1.0.2 Build 20210128 Rel.56556 Boot Loader Version: TP-LINK BOOTUTIL(v1.0.0) Since day 1, I was not able to upgrade step by step. When I...

@Clive_A Hello, As I mentionned and I confirm, my actual and original firmaware is 1.0.2... I tried all the firmware on the page you linked (I said it to previsously aswell).

So ... I gave another try today and same results... I will try go give a bit more info I upgraded my switch through Omada Controller. My switch has address 192.168.1.88 and my gateway is...

Hello, I recently upgraded my network with some new devices (SX3206HPP, OC300 and EAP773) but that's not the point. So my core switch is a SG3428X V1 and I never was able to upgrade it with firmware...