@mike0 

Yes, both VR400 and VR600 supports NAT loopback. 

@mike0 

Hello

I have buy the TP-Link Archer VR400 router

I read my manaul and cannot find that support NAT loopback

PLS Can you help me how to activate NAT Loopback?

Thx Robert

@Rob075 

NAT loopback is enabled by default, no option to turn it off on the web UI. 

@mike0 

Thanks for your anser, now it is clear to me...

Thanks for you advice / support

Greet Robert

@Kevin_Z 

Hello, do VR300 support NAT loopback? I currently have problem with it.

I have xx.tplinkdns.com/ DDNS.

I have port forwarding setup.

I can reach from inside LAN with IP 192.168.1.101 to my local server.
I can reach from outside of the LAN with DDNS

From inside LAN, I cannot reach with DDNS. As far as I understand, modem should NAT hairpin to make it work. Is this possible with VR300? Otherwise I would try same thing with VR400?

Somewhere on internet, I saw all TP-Link modems support NAT hairpining.

@e_g_loco 

I contacted Turkish TP-Link Live chat, responsible guy didn't know anythign about NAT hairpin.

I wrote here and didn't get any reply. (yet)

AS I stated before, somewhere on internet, I saw all TP-Link modems support NAT hairpining. (opensimulator page)

I bought VR300 and it didn't support it. I returned it.

I bought VR400. I liked that modem a lot more. Much better interface and much more capabilities.

I set up IPs and port forwarding. I tried to my ddns adrress from local network and viola it worked!

I am writing this so that other users that landed this page like me can buy VR400 with confidence for NAT Hairpin capability.