I also tried your helps:
1. Start Steam, right click on DayZ in your game library (make sure that the game is not running) and select "Properties".
2. Select the tab labeled "General" and make sure that "-skipIntro" is not part of your launch options.
3. Select the tab labeled "Local Files".
4. Click on the button labeled "Verify integrity of game cache...".
5. Start DayZ once the process is complete.
and
1. Delete the BattlEye folder found on your hdd: "C:\Users\<username>\AppData\Local\DayZ\BattlEye" and "C:\Program Files (x86)\Steam\SteamApps\common\DayZ\BattlEye"
2. Manually create new BattlEye folders at ""C:\Users\<username>\AppData\Local\DayZ" and "C:\Program Files (x86)\Steam\SteamApps\common\DayZ"
3. Go to http://battleye.com/download.html [^] and download the latest "BE Client for Windows (32-bit)"
4. Copy the BE Client (BEClient.dll) and paste it in the "C:\Users\<username>\AppData\Local\DayZ\BattlEye" and "C:\Program Files (x86)\Steam\SteamApps\common\DayZ\BattlEye" folders.
5. Launch DayZ and try logging on to a server.
and I still cant connect and play -.-