@MaJaX Hi, I am not sure if I understand you correctly. Do you mean your connection to the Internet worked fine initially, but as soon as you try to use custom DNS servers like Google or Cloudflare...

@Lukes2111 Hi, Can you please let us know what the information in below two configuration pages look like on your AX73? Do you have any other network devices that have their own DHCP server connected...

@pc273 Hi, What I meant to ask was, if the status screen in Windows is reporting the Ethernet speed as 1.0 Gbps after you have forced the driver to "1.0 Gpbs Full Duplex"? If Windows says "Speed: 1.0...

@Brewer Oh, I see. I misread your original post, sorry. Devices on the same VLAN should be able to communicate with each other.

@Brewer Hi, As far as I understand, different VLANs are separated by design and communication between them can only be achieved via a router. Maybe try a Google search for communication+between+vlans...

@pc273 Yes, that is the correct setting. Do you get 1 Gbps (1000 Mbps) connection speed to the Archer C6 now? Or no connection at all?