@PasKy I didn't change anything, i didn't touch the router or its UI for 6 months i live alone and it was working continuously good until three days ago i thought that maybe any router needs a rest...

@PasKy try to make a Firmware Reflesh, maybe it could be slightly corrupted i think it is corrupted, i tried to downgrade the firmware, and tried to reinstall the same version both ways aren't...

Hello, i have an error with my tp link Archer D9, i turned it off normally but when i wanted to turn it back On the next day it doesn't recognize my adsl cable anymore and the xDSL LED stays off...