Host issues

For some odd reason I'm not being able to host a joinable lobby.

I've been trying to play online with a friend recently but we both are facing the exact same issue.

As example, if I try to host a lobby and my friend tries to join thought Friends list, he's being send back to the Player/Lobby List.

Same thing happens when I try to join his game...

Our games also does not appear in the Games list for some odd reason.

I have tested on random lobbies and I can join those but others can't join my lobby or see my lobby.

Anyone had the same problem too?

I have forwarded ports, disabled firewall but nothing appears to fix it.

Any ideas?

I'm an Windows 10 user.

My friend is a Windows 8.1 user.

Edit: I forgot to mention it's about Red Alert 2

Edited by R3zonance, 24 November 2015 - 07:16 PM.