"Your version dosn't correspond" why?

[unmerged(42282)]

As it says in the title.
Yesterday i removed dd from my harddrive, reinstalled dd, installed the patch 1.2 so i got checkscum REBB. Tried to join a REBB game, i got "Your version dosn't correspond". I got this on many games. Can anyone help me?

 

[unmerged(56137)]

That error usually appears if you enter the wrong password as well for some reason, or perhaps the hosting game is not the same version. Some people use mods so it might not be a problem on your end.

 

[unmerged(42282)]

But if they use mods shouldn't they get a diffrent cheksum?

 

[unmerged(56137)]

yeah, does the room have the same checksum as yours when joining ? Also does this happen to all rooms or can you join some ?

 

[unmerged(42282)]

I only try to join games with the same checscum REBB.

Yeah this has happend to all games i tryed joining, the multiplayer room isn't exactly flooded with games so i have tryed like 5 times.

 

[unmerged(56137)]

hmm, well maybe its router related or something, I'm not quite sure but if its affecting all your games there is a good chance you might not have the ports forwarded properly.

edit:
after seeing your other reply, perhaps you don't have all the ports open. Maybe some of them are forwarded properly which caused the message to change, Incorrect version number like mentioned in the other topic seems to be used as a catch all phrase so it doesn't have to be version related.