I don't know whats going on, I was able to play on another computer without problem with Opera 27.
But at home - no matter if opera 12.17, 27 or Internet Explorer, it doesn't work.
In the development area I get the message:
play:38 GET http://data.dayz.com/pathfind.js?v=56asdf1a5s4df1
play:39 GET http://data.dayz.com/c2runtime.js?v=56asdf1a5s4df1
play:41 Uncaught ReferenceError: jQuery is not defined
This are the messages I reload the second time. The first time he only says 5 times Responded with a status of 403
for me, data.dayz.com is pointing to cds.s3a2z2y4.hwcdn.net [188.8.131.52, 184.108.40.206]
There are 2 differences between the two systems, the problematic one is x64, and there I have another internet provider.
I really like the game, it's nice to play when I'm feeling too tired for a long game (I die pretty fast even in the noob mode^^)
Strange, today I retried it with opera 27, and while using Opera Turbo, it began to work. Afterwards it also worked when I removed the cache and disabled Opera turbo.