Trying to connect Android using ddns

[chasestaples73]

I am not sure of the settings. I followed the instructions precisely but I am using a dynamic DNS address. It tried to connect but disconnects almost immediately. This has occurred with every phone I have tried and on both ddns servers I have tried. Is the DDNS causing issues or is there a setting I need to adjust on my host?
What are the common errors?

[dajhorn]

If the VPN session starts, then DDNS is working properly.

Many cellphone carriers mangle or artificially restrict VPN sessions over obvious protocols like PPTP and L2TP. Use a tunneled protocol that connects to port 80 or port 443 like OVPN or SSTP instead.

Past that, you should provide ISP information and the SoftEther vpn_server logs to get a better answer.

[chasestaples73]

Thank you. I am using Boost mobile for my phone. It is very possible that they have some time of VPN restriction.
I will experiment using your suggestions and see what happens.

[thisjun]

Did you configure port forwarding on VPN Server side router?

[chasestaples73]

Actually, no. I am using a charter business router and they do not allow customer access to router config. The ports that it is trying to connect through should be open already though... I will look and see if I can specify a port I know is open. until now, I just gave up. My PCs connect fine so I haven't been overly concerned.

[chasestaples73]

I couldn't ever get it to connect. Still can't get in to forward ports so I gave up. You can actually find a list of the ports on the softether site though.

[thisjun]

Please refer this page
http://www.softether.org/4-docs/2-howto ... irewall.3F

Forward ports UDP 500 and 4500.