@Majestic_Chris1 

Hey

The R600 is a WAN router so it will require an external Modem or ISP router to provide WAN access for you..  use the AX1800 as an AP  so yes you can use both if you wish

Leave both disconnected from eachother for moment

1. On the Archer x1800 disable the DHCP server and give it a static address of 192.168.1.2     this is done via ADVANCED     NETWORK     DHCP SERVER

2. Log into the R600 and make sure its IP is 192.168.1.1

3. now set the DHCP Range on the on the R600 to 192.168.1.3 onward

Once both are set connect any LAN port on the AX1800 to the LAN on the R600, you should then have connectivity wireless using the x1800 as an AP, the DHCP will come from the R600

Connect the WAN port on the R600 to your internet modem

Hope that makes sense

@Philbert

Thanks. I will do. With this configuration, is it posible for my remote employees to connect to my network using OpenVPN?  

@Majestic_Chris1 

Yeah they should be able to connect to the R600 via VPN as its the "main router" the ax1800 is simply now an access point.

Obviously you will need to configure ur WAN for VPN where appropiate but if thats all good then the R600 will do teh job.   If you are using a modem its likely good, an ISP router may need firewall or port forwarding rule set

@Majestic_Chris1 

I am also searching for the best configuration for my webpage