I'm getting the Error message: 'Confirmation of change - connection failed' when trying to join any server on the list(i can see all servers, FYI), this only happens when i have my firewall enabled.
My firewall is controlled by McAfee and even with the exception made(full access) for both steam and DayZ, it seams like it is being blocked by the firewall. Because when i completely 'nuke' my firewall I can join any server again.

*Note*
McAfee does not ask me if DayZ is good and okay for access to the internet, and it is already on the list of allowed programs.