Yup. Same problem here. I do get a lot of 'Bad Version, server rejected connection' errors, but when I don't I just get stuck on the 'Loading' screen. In fact I just powered up DayZ, connected to a server, left the house, went to the shops, brought some milk came back home and it was still 'Loading'. V 1.7.1 worked great for me and I got a fair few hours played, but none of the subsequent releases have worked for me. The version I'm currently using is the one downloaded via torrent.