Well, absolutely tried everything now and it doesn't work.
There must be some reason as to why 1.0.2 works but 184.108.40.206 doesn't.
Ill give that one a go too, thanks.
Doesn't work either, I think it's time I throw in the towel.
I honestly think for some people it's just not compatible. I guess I can at least use 1.0.2 to see if i can level some characters up or something get some free commondation chests.
Thanks for your help anyway.
Please try what Caliber said to do.
1 download 1.0.2 version of our trainer, run it, wait a few seconds, close it.. without the game running. then you can use 220.127.116.11 trainer
2 try running the vermintide 2 game in a window.
This solved the issue for me and many other people.