WNR2000-5 in AP mode doesn't prevent guest user to access my personal home network

Hello Antinode

Thanks for your reactivity and your explanations

1) As far as i undertsand your answer,  the   network isolation between WiFi guest network and my domestic network is not possible , because this feature doesn't exist in AP mode .

2) I had not  understood this point before buying this router, despites the questions i asked to the Netgear advisor in France, anyway ...

3) Let me explain what i try to make : 

-I am renting an appartment in my  property  which is too far from my home to receive the WiFi signal from my ISP modem router, and in order to overcome this problem, i have  installed  in the guest appartment the WNR2000v5 (the device is hidden  behind a piece of furniture) which is linked to my router with a CAT6 Ethernet cable.The aim is to offer Internet acces  only to the guest and prevent him to acces my home network.

4) is there a way to acheive  point 3 objective ? for example by using the WNR2000v5 in router mode behind my ISP router , knowing i cannot use the WNR2000v5 in the place of  the ISP router .

Thanks a lot in advance

Kind regards