@WhyInternet Best way to extend your ISP VDSL router's Wi-Fi is to use the C6 in AP mode - Case 1. Thus you'll avoid the double NAT in your network.

@Errefae That I was trying to explain - with two VR600 routers you can't build a mesh network - OneMesh FAQ - Q10/A10. Since VR600 v3 is a OneMesh capable router, If you had OneMesh capable repeater,...

@Errefae You're not benefiting anything from using the same SSID for both devices - that's not a mesh network. For troubleshooting purposes it's better to use a different names for the routers SSID....

@Fisherman You didn't describe your network topology and devices connected to the router. If the port scan is from inside your network you shouldn't worry about these ports. Judging by the...

@Adenbird Follow this thread to troubleshoot your issue. If you can't resolve your issue within the first 7 steps, then follow the instructions in the last 3 steps or comment bellow in the same...

@ramki_87 I agree on that. Here you can see similar request related to disabling WPS feature in AP mode. The method I suggested (disabling WPS when in router mode and then switch to AP mode)...