@Hybrid09 So the problem is that the firmware version cannot be updated, what I don't understand is why they add updates that cannot be used by their products? Now I have a router that I bought that...

@Joseph-TP Thanks for the reply but i try with all V5 firmware and all of them gives the same error code 4503 You can bring the link for the correct firmware for my router needs to run the version 5....

Can not update Archer c20 AC750 Firmware Model: Archer C20(ES) Hardware Version: Archer C20 v4 00000004 Firmware Version: 0.9.1 4.16 v01e4.0 Build 190212 Rel.66466n Hi, I tried to update my router to...