You should add to this guide that latest client version 3.0.7.3.3.8 will ONLY work with server version 0.4280.27337 or newer.
By the way, old version of server is better at the moment, because there is more space to explore.
Old version of server(0.4279.xxxxx) - you can play demon hunter
New version of server (0.4280.xxxxx) - you can play monk
By the way, old version of server is better at the moment, because there is more space to explore.
Old version of server(0.4279.xxxxx) - you can play demon hunter
New version of server (0.4280.xxxxx) - you can play monk