Ok so I've read throught this whole post, done all the instructed advice's below and mine is still coming up with "Bad Version, server rejected" I checked the files in the steam options and no matter how many times i check them it keeps saying 1 or two files are missing but never replaces them like it says it will. Have tried re-installing all Armas as well as DayZ Commander and it still isnt working. All the other DayZ mods work, just not origins. If anyone can help me that would be great as I am totally confused why it has stopped working all of a sudden, worked fine about a week ago and now it keeps saying server has been rejected.