vr400 update not working!
for some reason I can`t update my vr400(EU) router to latest version, if I download firmware to my pc and than try to upload to router I have error "ERROR CODE: 4503 - The uploaded file was not accepted" and I try few sources and few versions, one example is: https://www.tp-link.com/uk/support/download/archer-vr400/#Firmware
When I try to check for new firmware directly from router message was: your firmware is up to date
Why? Why I can`t upgrade it to latest firmware?