@amuz 

One solution I have found is to join the computer you want to access to the VPN, even if it is on the LAN of the Archer C60.

Hi @Tony thanks for your reply, sure let me know your email or some contact to send all the information. Thanks.

@amuz 

What I meant is to create a VPN connection from the computer that is on the local network to the TP-Link router. Reference the router IP address. That way when you connect remotely to the router you will then be able to access the files on the local computer.

@Tony 

Thanks for your Reply,

1) I have a Public IP configured in the Router
2) I have configured OpenVPN and conected to this VPN from and external service of internet. The conection was successfull and I can see the router settings.

3) I have configured PPTP VPN and conected to this VPN from and external service of internet. The conection was successfull and I can see the router settings.

4) In both cases I can not ping to my internal LAN, for example, when I conected from OpenVPN the system assigned to me the ip 192.168.1.6, I can see the IP LAN of the router 192.168.100.2 but I cant see the others IP like 192.168.100.100.... etc.

5) DHCP is around 192.168.100.100 - 192.168.100.200

If you want I can send to you the certified and the IP to see what that I mean. It would be great for me.

Thank you for your time.

@amuz 

Here do this:

1. Disconnect any VPN connection to the router.

2. Create a PPTP VPN connection on the local computer that is on the LAN of the TP-Link, the IP should reference the router (192.168.x.x).

3. Create a PPTP VPN connection on the remote computer, reference the public IP address. 

Once both computers are connected, log into the Archer router to see the active VPN connection. You will see the 10.0.0.x addresses that have been assigned. You will now be able to ping either device.