I bought two Archer C54s. I successfully set one up, and it's been running for more than one year. But the other one never worked properly.

I could only test it during the holiday as when I set it up, it would bring all connections down, so I have limited time to play with it around.

It looks like IP Confilct, but I can't make sure because in the Mikrotik log it only shows:

ether3-xx: bridge port received packet with own address as source address (6c:3b:6b:31:xx:xx), probably loop

I've checked the settings of this non-working Wi-Fi router with the one that I already set up. It's exactly the same. I've also upgrade the firmware, but still the same. Does anyone have the same problem? Does anyone know what could be wrong?

Please let me know if you need any data to provide.

Thank you