Invalid Login Packet issue.

[Nightquaker]

Hello there :3 Today I've tried to play MHP3rd HD with my friend and connection always dropped with Invalid Login Packet error.
We used Evolve as a VPN network, everything was configured properly. MAC addresses are different.
I've noticed that this issue is somewhat common.
Both me and my friend used the same build, which is 0.9.6-128
Can someone, please, help me with this issue?
Or, better yet, test multiplayer with me. My friend might have some of his ports not forwarded and that might be the reason.
Make sure you have MHP3rd.
If you'd want to test the multiplayer, ping me at my Skype quaker354.
Thank you :3

P.S. I used a english patch for my Monster Hunter Portable 3rd HD ISO, but as I was able to connect to the server myself, it doesn't seem to affect anything. My friend used a english patched ISO too.
Here is a screenshot of the error