That should be right then and I would expect it to be accepted. That page links to the C50 V6 userguide btw, so indeed another signal they are the same.
What version of the TP-Link firmware are you using? If it is very new, maybe you could see if downgrading is supported? Another option would be the TFTP method as it seems that worked for @NewUse.
I'm also seeing there is a V6.20 listed for the EU model.
I was not able to use tftp to load the firmware to the rooter, I always get the following timeout (see tftp guide):
20:19:39.821499 IP 192.168.0.2.ssmpp > fedora.tftp: TFTP, length 34, RRQ "tp_recovery.bin" octet timeout 1
Can someone help with that or do I open a new thread? (I am using Fedora Linux 41, a switch between router and pc and the tftp server is the tftp-server package for fedora which should be the equivalent of tftpd-hpa on ubuntu)
all could be done via build-in dnsmask-tftp , first of all try to disable firewall. Then check if ping fedora.tftp returns the IP of your pc, and that this ip is inside 192.168.0.1/24 network
Are you sure your PC is using 192.168.0.66? Is 192.168.0.2 used by the Archer C50?
Found out it was working, only me being dumb. Thanks