There is no exceptions, every time at ~5min mark I get booted to the main menu “Critical Error! Game will close now” popup. Start the game -> Play -> Objective or Stopwatch -> play ~5min and then cry.
Log file has this in it at the time of “crash”: Log: [CONNECTIVITY] Termination code [32]:Xigncode AuthClient Rejected
Everything worked well before wipe. I have tried to reinstall and removed all files that DirtyBomb creates, no dice.
Extremely irritating, especially because I’m a founder.
Sounds like you’re missing an anticheat heartbeat or something.
Are you running an antivirus that might be blocking Xigncode?
Wow, actually looks like that was the case. I have F-Secure Safe. I disabled it and then verified integrity of game cache, it downloaded one file, done this earlier too. I think the F-Secure blocks or removes that one important file. 
I just need to figure out which file or files I should put in the exception list, since there is no Xigncode.exe, I think.
Looks like I was wrong, F-Secure Safe does not affect the game nor Xigncode.
I have F-Secure disabled, I did verify integrity of game cache and 1 file. Then I went to play, for 5 minutes. Then I do the verify integrity of game cache again and ta-daa, 1 file failed to validate. It seems to be the xnina.xem in Dirty Bomb\Binaries\XIGNCODE\client.
While annoying, a bit interesting.
I found the “problem” for some reason the XigzagoonCode doesn’t like a program called StealthBot (b.net chat program). If I want to play DirtyBomb more than 5 minutes, I just need to remember to close that… :d
Well deduced, didn’t think this would be the problem as I thought it always crashed immediately if it found something it didn’t like.
For some reason it flags many legitimate things as scetchy, unfortunately I haven’t seen a single one of these fixed yet, but I’ll keep asking for it.