Forge 1.8 multiplayer LAN invalid session - 2

Hi,

I used to play with Forge 1.7.10, today I decided to pass to new version of Forge 1.8.

I downloaded this : forge-1.8-11.14.3.1521

It's the last one.

When I play alone everything is ok. But when someone hosts a game and when we try to connect through LAN, we have this error :

Authentication failure : Invalid session (try to restart the game). It's not a crash, it's just written in minecraft's window.

I searched all the morning how to solve this issue but I didn't find.

We can see the game of the guy who hosts. And before with Forge 1.7.10 we never had this trouble.

Of course if I restart the game it's useless. I think I tried all what was written on google.

I saw on internet that some persons played with Forge 1.8 through LAN with other players. So why wouldn't it work for me ?

I did several tests :

My computer hosts

- Logs of my computer : https://gist.github.com/anonymous/5eccb211480ff116e09d

- Logs of the other computer with official version : https://gist.github.com/anonymous/154236b3aab495ec7f30

Computer with official version hosts the game :

- Logs of my computer : https://gist.github.com/anonymous/82e5228b123e0db737ab

- Logs of the other computer with official version : https://gist.github.com/anonymous/4a5dd350a5656dfbfb54

2 computers with cracked version :

- Logs of the host : https://gist.github.com/anonymous/9f32804b070a64e075fd

- Logs of the other : https://gist.github.com/anonymous/bb8becb62e5961f4de01

Does anybody know the solution ?

Also I want to thank stupid moderator who bannished me. I know that we have to own the game, that's why I bought one for my house, and thank you I don't want to buy it 2 times to play with my brother. That's why I allow me to create a new subject.