Can't join Multiplayer (Mod Missing)

[Nakani]

Me and my friend is currently trying to play multiplayer together in for example, my own lobby, or another persons. But the issue is that he can no longer join a lobby succesfully. He used to, but cannot anymore. Below is a screenshot of what he gets when trying to join a multiplayer (internet) lobby:

It appears as if he doesn't have the DLCs, but that shouldn't be neccesary? Right? I can join any lobby without the DLCs, so why can't he? When I create a lobby, I tried to disable all DLCs. Yet it still says that the Nubia and Australia DLCs are missing, yet I don't even own them??? We have tried reinstaling the game, computer, etc. It still seems odd, since he could before. If anyone knows what this is, please feel free to help us.

Thanks in advance.

 

[sonnybondss]

Well looks wierd. I m not an expert but u must enable auto download somewhere in settings maybe it helps

 

[Kurnn]

You both need to verify files.
Then you, as host, you need to Disable ALL DLC AND the content that comes with them, like scenarios.
Then it works.

I suggest your friend, who doesnt have any DLC, is the host. Then it wount use "old data files", which is very common in Multiplayer bugs.
In the menu, there is a button to auto download the mods you dont have. You both needs that on.
HOWEVER, you can NOT play any DLC content with a player who doesnt have it.

Also, check your mods. If any mod has anything to do with any DLC, it will act as that DLC.

The best is to test. Put ALL mods OFF, both of you. Then start a multiplayer game with no AI, small map. Just go.
If it loads, and works, then the issue is ONE of your settings/mods.

The DLC are well worth to buy btw. Get your friend to get em, and lots of problems goes away p.