Hello, I'm not sure if I did the header information correctly, but I am trying to use an L2TP VPN via DDNS (No-IP). I have gone through and made the VPN profile and User account, and they both work fine (using my iPhone) when I configure the "Server" as my public IP address. I'm able to successfully connect to the VPN and access devices on my local network.

However, I don't have a static public IP, so I'd like to use a No-IP DDNS to retain VPN access in the event my public IP ever changes. I went through the process to create a No-IP hostname type DNS Host (A) and set the IPv4 address as my public IP address (the same one I use when configuring the VPN profile on my iPhone). However, when I put in the created No-IP hostname into my iPhone VPN profile as the "Server" I am not able to connect to the VPN anymore.

If I type the hostname into the address bar, it brings me to the router login page for my local network.

For reference, I have the following configuration for my network:

WAN -> Router: TL-ER605 (v1.0) -> Switch: TL-SG2210MP (v1.0) --|

                                                                                                            |

                                                                                                           /\

                                                                                                         /    \

                                                                                                OC200    EAPS, DEVICES, Etc...

Is there some kind of special configuration I need to do when creating the hostname on No-IP so that the L2TP VPN will work? I just don't understand why using my public IP directly works, but using the created hostname that routes to my public IP doesn't work for the L2TP VPN.

--------------NEW INFORMATION-----------

As I was typing this all up it occurred to me to double check everything. I went back and looked at the VPN configuration on my iPhone and realized that the server was set to <custom.ddns.hostname>.com when it should have been <custom.ddns.hostname>.net. Once I changed the server on my iPhone VPN configuration to end in .net, the VPN worked as advertised and was able to connect.

I had already typed all the information above, so I figured I would still post this just in-case someone in the future has any use for it.