@Andreask81 

Hello, please click here to get the IP address and gateway after you switched from Ubuntu to Windows 10. 

Generally speaking, as long as the Windows PC send the DHCP request, Archer VR600 would response and assign IP address; 

And can I say that you can solve this issue by create a different MAC address in Ubuntu via MAC spoofing? 

Good day. 

@Kevin_Z 

Hello. Yes, when a different MAC address is configured with netplan, the issue is solved.

network:
  version: 2
  renderer: NetworkManager
  ethernets:
    enp2s0:
      dhcp4: true
      macaddress: xx:xx:xx:xx:xx:xx

@Kevin_Z 

To clarify, there is no IP assignment when rebooting from Windows 10 to Ubuntu.

MAC spoofing in Ubuntu solves the issue.

@Andreask81 

Hello, thanks for your valued reply.

Cause it cannot obtain valid IP address and gateway automatically, you can try to get it manually via commands. 

Othewise, I'm afraid that you need setup different MAC address for Ubuntu as a workaround. 

Good day. 

@Kevin_Z 

Hello. If this is a firmware issue, shouldn't be tested to valify it and TP-Link to provide a fix?

Good day to you also.