Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503
Downloaded the latest firmware version Archer_C20_V4_181213 from the following link: https://www.tp-link.com/in/support/download/archer-c20/v4/#Firmware
Tried to manually upgrade the firmware version on my TP-Link Archer C20 v4 router.
I used wired connection as suggested.
It fails with following text:
The uploaded file was not accepted by device.
Model: Archer C20
Current Firmware version:
0.9.1 3.16 v0001.0 Build 161130 Rel.68411n
Archer C20 v4 00000004